Best of our wild blogs: 5 May 09


The Singapore Blue Plan - Zao Bao
on the Raffles Museum News blog

2008 Waste Statistics and Current Waste Situation in Singapore (Part Four) on Zero Waste Singapore

Environmental Quiz Challenge
for the Singapore International Water Festival (SIWF) on the Water Quality in Singapore blog

Exciting April
on the Adventures with the Naked Hermit Crabs blog

Moringa and Common Iora
on the Bird Ecology Study Group blog

On an ancient mariner
on the annotated budak blog

Water quality monitoring with Team Seagrass at Pulau Semakau
on the Water Quality in Singapore blog

Macroinvertebrates as Sentinels for Monitoring Freshwater Pollution an upcoming workshop on the Raffles Museum News blog

Future of petrochemicals on our Southern Islands
on the wild shores of singapore blog


Read more!

Why global warming could make or break south-east Asia: Stern

South-east Asia has the most to lose from global warming but could gain much by developing a low-carbon future
Nicholas Stern and Haruhiko Kuroda, guardian.co.uk 5 May 09;

In the middle of this financial crisis there is a debate taking place over whether governments can afford both massive tax-funded spending programmes needed to revive ailing economies, and the emissions cuts that are needed to combat climate change.

Few regions on Earth throw this tension into sharper contrast than south-east Asia, where many nations are highly vulnerable to the effects of global warming while also having the chance to develop low-carbon economies.

The plain truth is that nations can no longer afford to delay action on climate change, even temporarily, and such spending can serve as effective fiscal stimulus. Despite the global economic downturn the world is still warming. A major new report from the Asian Development Bank – The Economics of Climate Change in Southeast Asia: A Regional Review – explains how countries that invest now in climate change adaptation will better protect their people, economy and environment. Even with aggressive adaptation efforts, the negative impacts of climate change will continue to worsen. Only concerted global action to reduce greenhouse gas emissions can ultimately steer the world off its current calamitous course.

The report examines a wide range of climate change impacts in Indonesia, Philippines, Singapore, Thailand and Vietnam. It finds a "business as usual" approach will result in a difficult future for the region and its people.

By the end of this century temperatures in south-east Asia will rise significantly, tens of millions will experience water shortages, rice production will decline, and large swaths of forests will disappear. Rising sea levels will force the relocation of millions of island dwellers and coastal communities, and there will be a surge in dengue, malaria and other diseases.

With population centres and economic activity concentrated along south-east Asia's coastlines and livelihoods particularly dependent on agriculture, fishing and natural resources, the region is acutely vulnerable. Adopting a similar modelling approach to that used in the 2007 Stern Review, the report concludes the region is twice as economically vulnerable to climate change compared with the rest of the world.

The good news is that far from the world's policy makers being captive to the economic crisis, the opposite is true: the crisis may offer opportunities if we can boost programmes to improve water, sanitation, climate-proofing and reduce carbon dependency and protect forests.

At their recent London Summit, G20 leaders agreed that current stimulus programmes should be used to foster a green, sustainable recovery. As was outlined in the recent joint report from the UK's Grantham Research Institute on Climate Change and the Environment and the Centre for Climate Change Economics and Policy – an outline of the case for a "green" stimulus – energy efficient and low carbon technologies are not simply means for reducing carbon emissions. They are also extremely effective as a fiscal stimulus because they can be implemented quickly and are relatively labour intensive.

For Asia's governments, these kinds of public investments, in both adaptation and mitigation, will be essential to eradicating extreme poverty, achieving the Millennium Development Goals, and making structural transformations that are needed to place the region on a low-carbon path.

Over the next 50 years, much of the world's new energy and urban infrastructure will be built in Asia, locking in the region's greenhouse gas emission pattern. Encouragingly, there are vast, untapped opportunities for energy efficiency improvements, cleaner transport, and for increasing the use of renewable energy sources including biomass, solar, wind, hydro and geothermal.

Some of these schemes can be financed through the government's own fiscal stimulus programmes, others with international assistance, including both additional funding sources and the transfer of knowledge and technologies.

That might seem like a lot to ask in the midst of the worst financial crisis since the Great Depression. But the benefits will be enormous.

We have no time to delay. The financial crisis will come to an end. Without action, the same cannot be said for climate change.

• Lord Stern is chairman of the Grantham Institute for Climate Change and the Environment and the IG Patel professor of economics and government at the London School of Economics. Haruhiko Kuroda is president of the Asian Development Bank.


Read more!

Earth Island wants total export ban on dolphins from the Solomon Islands

Solomon Star 5 May 09;

THE Earth Island Institute based in the United States said it would campaign hard to ban any dolphin exports from this country.

Mark Berman of Earth Island was responding to the new rules that Solomon Islands be allowed to export only 10 dolphins a year.

Mr Berman said this quota of 10 dolphins include any that die in the process of capture.

“So if 10 are captured and 5 survived that is the quota for the year,” he said.

Mr Berman said the Solomon Island government has been totally irresponsible on this issue of allowing 100 dolphins per year.

“This shows the Minister of Fisheries Nollen Leni and his science advisers are driven by politics and the promise of dollars,” Mr Berman said.

“The science provided at the farce of a dolphin forum in late March was only mad science and proven wrong at CITES.

“Now that the quota is only 10, the value of the trade as you can see is diminished.

“Our goal now is to get this total to ZERO and end this insidious trade once and for all.

“The Solomon Islands government is becoming a pariah when it comes to protecting its natural resources including dolphins,” he said.

The Animal Welfare Institute (AWI) said the Solomon Islands controversial trade in wild-caught dolphins is to be subject to an in-depth review under the Convention on the International Trade in Endangered Species of Wild Fauna and Flora (CITES), as decided by the CITES Animals Committee at its annual meeting recently in Geneva.

Evidence from leading cetacean experts in the International Union for the Conservation of Nature's Cetacean Specialist Group (CSG) reveals a lack of population data for bottlenose dolphins in the Solomon Islands.

This led the specialists to conclude that it is impossible to determine that the export of bottlenose dolphins is not detrimental to the wild population - a CITES requirement.

The CSG's evidence was critical to the decision to place this dolphin trade into the CITES significant trade review process, a mechanism to ensure compliance with Convention.

"This should be a wake-up call to the Solomon Islands' government that the sustainability of its controversial trade in wild-caught dolphins will now be under CITES scrutiny," says D.J. Schubert, Wildlife Biologist of the Animal Welfare Institute (AWI), who attended the CITES meeting.

"The government is obligated to comply with the rules of CITES - rules that it has, to date, ignored. AWI demands the government to suspend future live captures and exports of bottlenose dolphins, pending completion of the review process."

The Animals Committee also recommended that the Solomon Islands' government set a more cautious dolphin export quota.

By MOFFAT MAMU


Read more!

Indonesian government plans to sell inhabited islands to foreign countries

Adianto P. Simamora, The Jakarta Post 4 May 09;

Indonesia is mulling some plans to “put up for sale” its inhibited small islands as shelters for environmental refugees thanks to the climate change which was likely to disappear some of Small Island States.

Maritime Affairs and Fisheries Minister Freddy Numberi raised the idea over concern of sea level rise due to climate change which would end up under water low-lying countries.

“Pak Freddy still needs to consult the idea with President Susilo Bambang Yudhoyono before going into detailed plans,” the ministry’s director general for coastal and small islands Syamsul Maarif told reporters on Monday.

“But, it is smart plans if we see severe impacts of sea level rise.”

He said that a number of countries, including Maldives, had started purchasing new homeland in India as shelters for its citizens if the sea level disappear the island.

The United Nations has warned that the climate change could raise the sea level up to 59 centimeters by 2100 unless the world countries take actions to cut huge scale of greenhouse gas emissions.

Most parts of Maldives are currently just about 1.5 meters above the water with the highest land point is 2.4 meter above sea level.

He said that Indonesia currently has 17,480 small islands across the archipelago.

“We find so far only 20 islands which have lost due to environmental problems including sea level rises of climate change,” he said.

Indonesian government proposes renting islands to refugees
Adianto P. Simamora, The Jakarta Post 5 May 09;

With the impact of climate change likely to wipe some small islands off the map within the next 100 years, Indonesia is considering renting some of its uninhibited islands to international communities displaced by environmental disasters.

Maritime Affairs and Fisheries Minister Freddy Numberi raised the idea in relation to concerns surrounding a possible rise in sea levels as climate change threatens low-lying countries.

"Pak Freddy still needs to consult President Susilo Bambang Yudhoyono before going into detailed plans," the ministry's director general for coastal and small islands Syamsul Maarif told reporters Monday.

"But, it is a smart plan considering the severe threat rising sea levels pose."

A number of small-island states, including the Maldives, have begun purchasing new "homeland" in other countries for its citizens in case their islands begin disappearing in coming years.

The International Panel on Climate Change (IPCC) has predicted climate change will raise sea levels by nearly 60 centimeters by 2100 if nations do not make a concerted effort to cut greenhouse gas emissions.

Most of the Maldives are currently just 1.5 meters above sea level, with the highest land point reaching less than 2.5 meters. This places the country at serious risk of being inundated by rising sea levels.

The Maldives comprises of nearly 2,000 islands grouped around 26 Indian Ocean atolls, though only 250 islands are inhabited. The country's population is estimated at 380,000.

Syamsul said it would be very possible for Indonesia to "trade" its islands since many of them were uninhabited and naturally safe from rising sea levels.

Renting islands using permit regulations is a common practice for the tourism industry nationwide.

Indonesia is currently made up of nearly 17,500 small islands.

"We have detected around 20 islands which have disappeared due to, among other reasons, rising sea levels prompted by climate change," Syamsul said.

"However, we constantly discover new islands."

Indonesia has 5.8 million square kilometers of sea, with coastlines stretching 81,000 kilometers. The seas provide homes and income to millions of people.

Scientists and climate change observers, including the Asian Development Bank, have predicted that rising sea levels will also inundate hundreds or even thousands of small islands in Indonesia.

Under a high emissions scenario, the ADB projected the annual temperature in Indonesia will increase by 4.8 degree Celsius by 2100 compared to 1990.

This in turn could lead to a 70 centimeter rise in sea levels over the same period.

Syamsul said more research into the impacts of climate change was necessary before such predictions could be made.

He also said the government had taken a series of steps to avoid remote small islands from vanishing.

"We have 92 islands which act as indicators of Indonesia's marine borders, 12 of which are vulnerable to rising sea levels," he said.

"But, we have taken a lot of mitigation measures, including planting mangroves around these islands."

Indonesia will host an international ocean forum in the North Sulawesi capital of Manado next week which will see government delegates and experts from 121 countries discussing the role of oceans in dealing with climate change.

Minister Freddy earlier said that the conference would discuss moves to help small islands cope with climate change.

Small-island states have repeatedly appealed to the international community for assistance dealing with climate change and urged developed countries to take a lead in cutting emissions.

Indonesia plans to sell inhabited islands to foreign countries
www.chinaview.cn 5 May 09

JAKARTA, May 5 (Xinhua) -- The Indonesian government has proposed to sell its inhibited small islands as shelters for environmental refugees, a senior official said here.

Such an idea was initially raised by Maritime Affairs and Fisheries Minister Freddy Numberi, the Jakarta Post daily Tueasday quoted Director General for Coastal and Small Islands of the ministry Syamsul Maarif as saying.

The United Nations has warned that the climate change could raise the sea level up to 59 centimeters by 2100 unless the world countries take actions to cut huge scale of greenhouse gas emissions.

He said that Indonesia currently has 17,480 small islands across the archipelago with 5.8 million square kilometers of sea and 81,000 kilometers of coastal lines.

20 of Indonesia's islands already lost due to environmental problems including sea level rises of climate change, he added.

The Indonesian government had taken a series of steps to avoid remote small islands from vanishing.

"We have 92 islands, which act as indicators of Indonesia's marine borders, 12 of which are vulnerable to rising sea levels," he said.

Indonesia will host an international ocean forum in the North Silawesi province's capital city of Manado next week. Delegations and experts from 121 countries are expected to discuss the role of oceans in dealing with climate change.


Read more!

Singapore company turning waste into green energy

Business Times 5 May 09;

Alpha Biofuels collects liquid waste, including used vegetable oil from restaurants and homes, and converts it into bio-diesel to power vehicles, reports BRITTANY KHOO

A wish for a greener world through sustainable energy prompted Allan Lim, chief executive officer of Alpha Biofuels, to find a viable way to produce energy from community waste.

Liquid waste - such as used vegetable oil from restaurants and homes - can be converted into bio-diesel through Alpha's technology and used to power vehicles.

Alpha was set up in 2004 as a spin-off from parent company Alpha Synovate, to look into producing greener alternatives to traditional fuels.

Mr Lim wants to convince the community of the need to temper climate change by using more sustainable fuel such as bio-diesel. He runs operations at a Tanjong Penjuru plant with a staff of 12, seven of whom are local university interns.

'A difficult game'

But things have not been easy for Alpha. Its five years of existence have been fraught with challenges and difficulties. For a start, it had pioneered its technology at 'micro' scale, whereas current equipment to make bio-diesel is roughly the size of a Jurong refinery. Additionally, Alpha faced a big challenge breaking into an industry dominated by giants such as Shell and ExxonMobil.

'It was, and still is, a difficult game for a small start-up with no logistics or infrastructure,' says Mr Lim.

Fortunately, Alpha received grants from Spring Singapore, as well as a two-year incubation stint at ITE College East, where it had access to laboratory facilities and technical support to conduct research and development.

The result, according to Mr Lim, is a less energy-intensive, lower-cost process that beats the industry standard and allows Alpha to bring bio-diesel to local markets at a lower price. And having developed its own in-house technology gives the company full control over all aspects of production.

Multiple benefits

The process enables the conversion of typically hard-to-work-with feedstock, such as sewer grease and algae, into liquid fuel, with environmental and economic benefits.

Today, Mr Lim's company collects waste oil from various places in Singapore for treatment at the plant. Through trans-esterification, demethylation, purification and filtration, a series of biochemical steps are taken to obtain bio-diesel that can be used in standard diesel engines.

The bio-diesel is used to power the fleets of restaurants, logistics companies, manufacturers - and even a growing number of individuals, who buy the amount they need directly from Alpha at its six retail locations around Singapore. Besides bio-diesel, Alpha is researching conversion processes for other bio-fuels such as bio-ethanol.

'I believe very much in changing perceptions,' Mr Lim says of Alpha's aim. 'We are concentrating on recycling the community's waste, enforcing a tight circle of sustainability in society.'

Through a combination of educational workshops, plant visits and community outreach sessions, Alpha hopes it can slowly change Singaporeans' attitude towards sustainable energy. In terms of customer feedback, its product has won positive reviews, particularly from corporate fleets that benefit from a reduced carbon footprint.

Backed by these achievements, Alpha is unfazed by the economic downturn. It is not profitable yet, but believes it will survive the recession because its selling point - sustainable energy - will boost demand for competitively priced bio-diesel.

Alpha's bio-diesel was retailing at $1 a litre last night - about 15 per cent lower than the market average. Mr Lim says the company sells the 'cheapest bio-diesel anywhere in Asia' because of the innovative technology and feedstock it uses.

While still in the high-growth stage, Alpha is 'very careful' about spending.

'We go as lean as we can, with as few liabilities as possible,' says Mr Lim. 'The key to what we are doing is to maintain a healthy cash flow.'


Read more!

Mega farms to blame for current flu outbreak

Harish Mehta, Business Times 5 May 09;

SO the American farm lobby has been successful in removing the swine from the flu and getting the virus called by its scientific label - A(H1N1) - instead.

Last week US farm groups wanted to rename the virus 'North American influenza'. 'Swine flu is a misnomer,' said C Larry Pope, chief executive of Smithfield Foods, who said he feared panic among consumers.

In fact, the swine flu outbreak highlights the lack of regulation of mega pig 'factory farms' in the US and in their subsidiaries in Mexico. The viruses breed because these mega units are overcrowded with pigs.

North Carolina boasts some of America's biggest factory farms, besides having the densest population of pigs and double the number of pig processing factory farms than any other US state.

Samuel Epstein, professor emeritus of Environmental and Occupational Medicine at the University of Illinois School of Public Health, told The Business Times that pigs raised in close proximity with humans are the probable cause of the outbreak.

Robert Webster, an expert on the evolution of the flu virus, argues that North American farmers are practising intensive farming involving raising pigs and poultry in adjacent sheds with the same workers. As it is now clear, this poses a danger to human health.

The genetic lineage of the swine flu virus can be traced to a virus first seen in a North Carolina pig factory farm in 1998. That year, thousand of pigs in the farm fell ill. Researchers found an aggressive virus, H3N2, similar to the flu virus that has affected humans for more than 40 years. Researchers thought this was extremely worrisome because only one type of human virus had earlier been found in US pigs. Even more alarming was the discovery that it was not just a pig virus. It was a deadly hybrid of a human, bird and pig virus.

From North Carolina, as the live pigs were transported across America to their ultimate destination on grocery store shelves, the virus made its debilitating appearance in Texas, Minnesota and Iowa, and within a year in many more places in the United States.

Farms morphed into factories in the early 1990s when the American pig industry adopted a new model of efficient farming. Small dispersed farms were merged into mega farms, squeezing the large number of animals into living areas the size of industrial factories. More than 10 million pigs that lived in more than 15,000 farms were crowded into 2,000 farms. Now almost everyone is agreed that overcrowding is the principal cause of the appearance of the new virus.

The 60 million US pig population, scientists believe, has tremendous potential for causing human pandemics in the future. Like the US, Mexico is home to hundreds of mega pig factory farms. Not surprisingly, most are owned by US companies because of the lure of cheap labour, and access to the lucrative Latin American market.

For the present, the scientific community is worried that the unfettered circulation of the triple hybrid virus may result in the mutation to a new generation of viruses.

North Carolina journalist Tom Philpott has studied the link between the swine flu outbreak and Virginia-based Smithfield Foods, the world's largest pork producer. According to his study, the current outbreak started in Veracruz, Mexico, where a Smithfield subsidiary produces a million pigs a year.

People living close to the factory believe the outbreak was caused by contamination from the factory farm. A Mexican newspaper has also reported on a possible connection between the Smithfield farm and the outbreak. However, the company has said there are no signs of swine flu at its farms in Mexico. Other Mexican factory farms have denied that the swine flu outbreak originated in their farms. Their denials, however, contradict Mexican government confirmation that the outbreak did originate from pigs in that country.

Meanwhile, the US Department of Agriculture on April 28 assured consumers that US pork was safe to consume, and there was no evidence of US pigs being infected with the virus. The World Health Organisation has clarified that it is all right to eat pork if properly cooked to 170 degrees F, and that flu viruses are not known to be transmittable to humans by eating pork.

Official confirmation that pork is safe to eat will no doubt reassure consumers. But given its potential to disrupt the global economy, it is far more important that the conditions which enable the virus to breed and mutate into ever more deadly strains be tackled.

Everyone should also be told how the US (and Mexican) authorities plan to regulate the factory farms and ensure that another killer virus does not emerge a few years down the road.

The writer, based in Toronto, specialises in environmental and intellectual property rights issues


Read more!

Bear tapping: A bile business

Marc Bekoff, New Scientist 4 May 09;

JASPER is an Asiatic black bear, also known as a moon bear because of the yellow crescent on his chest. In 2000 he came to the Animals Asia Moon Bear Rescue Centre in Chengdu, China, from a bear farm.

When Jasper arrived his rescuers had to cut him out of a tiny "crush cage" that pinned him down so the farmer could extract lucrative bile from his gall bladder. Bear bile is used in traditional Chinese medicine and fetches a tidy price. In China, the wholesale price is around 4000 yuan (approximately $580) per kilogram; each bear produces up to 5 kilograms a year. But it comes at terrible cost.

Jasper spent 15 years in his cage. Other bears spend up to 25 years in cages no bigger than their bodies, barely able to move. Bears are milked for bile twice a day. In China, farmers use a crude catheter inserted into the gall bladder or a permanently open wound. In Vietnam, they use long hypodermic needles.

Over the past 10 years, Animals Asia has rescued 260 bears from Chinese bear farms. These are the lucky ones. The official number of farmed bears in China is 7000, but Animals Asia fears the real figure is closer to 10,000.

Despite its obvious cruelty, bear farming is legal in China. While CITES, the Convention on International Trade in Endangered Species, lists Asiatic black bears at the highest level of endangerment, China grants them only second-level protection, which allows them to be farmed. There are no reliable estimates of the remaining wild population in China, though some have put it as low as 15,000.

Bear farming is also practised in Vietnam, where it is illegal but remains widespread because of a lack of enforcement. There are around 4000 bears on Vietnamese farms and yet more in Laos, Cambodia and Korea.

In China, bear farming is justified on the grounds that it satisfies local demand for bile, hence reducing the number of bears taken from the wild. Farms are allowed to breed bears in captivity and hunting wild bears has been illegal since 1989. Despite this, many wild bears are still poached for their whole gall bladders or to restock the farms. Bears sometimes arrive at the rescue centre with missing limbs after being trapped in the wild.

The rescue programme was sparked in 1993 when Animals Asia founder Jill Robinson visited a bear farm. After years of government lobbying the rescue centre was set up in 2000 and now houses up to 175 bears.
Broken bodies

Those bears who reach the centre have invariably suffered serious physical and psychological trauma. Rescued bears can't be released into the wild because of the long-term damage caused by their incarceration. All need surgery to remove damaged gall bladders and many need additional surgery and long-term medical care due to missing claws or paws, infected and necrotic wounds and broken and missing teeth caused by biting at bars or because farmers break them to make the bears less dangerous. Many also have liver cancer as a result of being continually milked for bile, plus a litany of other ailments including blindness, arthritis, peritonitis, weeping ulcers and ingrown claws.

In contrast to the horrors of bear farming, the rehabilitation process is amazing and inspiring to witness. It takes around a year to rehabilitate a bear. Although a handful have to be kept alone for the rest of their lives, most can eventually be housed with other bears. The transition in personality from animals who are violent and fearful to ones who are trusting, inquisitive and completely at ease with people is truly remarkable, Robinson says. She is right. I have visited the rescue centre and it changed my life. That is how powerful the bears' stories are.

Watching rehabilitated bears play is a joy. Many continually seek out playmates, an indication that they have substantially recovered from their trauma. I once saw two bears called Aussie and Frank frolicking on a hammock. When Aussie saw Jasper ambling over, he jumped off the hammock, approached Jasper, and they began play-fighting. The deep trauma they had experienced wasn't stopping them from enjoying themselves. Yet some bears have behavioural scars and flashbacks from their unspeakable abuse. Aussie still scampers back to his den when he hears a strange noise.

Despite the rescue programme bear bile extraction remains a cause of wanton and remorseless abuse. It is hard to change attitudes when bear bile has been used in Chinese medicine for more than 3000 years to treat "heat related" ailments such as eye and liver diseases. Today it is used to treat conditions from hangovers to haemorrhoids.

There is some evidence from western medicine that a synthetic version of the active ingredient in bear bile, ursodeoxycholic acid, can treat a range of diseases, including hepatitis C. Yet traditional Chinese medicine still insists on using natural bear bile, which is often contaminated with pus, blood, urine and faeces. While healthy bear bile is free-flowing and orangey-green, veterinarians describe bile leaking from the diseased gall bladders of rescued bears as "black sludge".

The moon bear rescue project raises a number of important questions. For example, why do bears show large individual differences in response to persecution, and variations in recovery? Rescued bears are powerful ambassadors, but should so much time and money be invested in saving the lives of individuals who will not make any direct contribution to saving their species? How can people from outside China work to free bears while respecting their Chinese colleagues and remaining sensitive to cultural traditions? It also raises questions about how people can act in undignified and shameful ways that ignore the horrific pain and suffering of highly sentient animals.

Efforts to stop bear farming are ongoing. Soon after Robinson founded Animals Asia in 1998, she negotiated an agreement with the Chinese government to work towards the elimination of bear farming. All farms are inhumane, but the very worst are identified for closure by the government and the farmers have their licences permanently revoked. It is from these farms that bears come to the rescue centre. Animals Asia compensates the farmers so that they can start another business or retire. More than 40 farms have so far been closed, and China has not issued any new licences since 1994.

Animals Asia has also submitted a proposal to the government to help wind down the industry, including offers to help bear farms become rescue facilities.

There is still much to be done to right the wrongs of bear farming. Robinson looks to the day when all farmed bears will wake with the sun on their backs and without fear in their hearts. Each bear surely appreciates the effort. Just look into their eyes. I have.

Marc Bekoff is professor emeritus at the University of Colorado in Boulder. In 2000, he and Jane Goodall co-founded Ethologists for the Ethical Treatment of Animals


Read more!

Gray wolf withdrawn from US endangered list

Yahoo News 5 May 09;

WASHINGTON (AFP) – Thirty-five years being hunted to near extinction, the gray wolf on Monday was taken off the US list of endangered species, clearing the way for it to be hunted again in most states.

"We have recovered a wolf population," said Ed Bangs, wolf recovery coordinator for the US Fish and Wildlife Service in the western state of Montana.

"The populations are viable, they are in great shape, they have extreme genetic diversity and so the Endangered Species Act did its job to bring wolves back," Bangs said.

The Endangered Species Act (ESA) comprises dozens of wide-ranging environmental laws passed in the 1970s to protect imperiled species from extinction as a "consequence of economic growth and development untempered by adequate concern and conservation."

The gray wolf (canis lupus) was placed on the endangered list in 1974 after the animals were almost eliminated in many US states.

But thanks to conservation efforts its numbers now reach some 4,000 in the Great Lakes region, which includes Michigan, Minnesota and Wisconsin, and there are more than 1,300 in the Rocky Mountain states of Idaho and Montana. There are also between 8,000 and 11,000 grey wolves in Alaska.

In all these states wolves can now be hunted again according to strict regulations.

"The states will be able to use regulated hunting to manage wolf populations," said Bangs, adding that "the hunting season will occur this fall, people will be able to buy a license to hunt a wolf."

In northwestern Wyoming, where there are still only around 300 animals, the wolf remains a protected species.

In recent years there has been isolated hunting allowed when wolves briefly came off the endangered list in some areas. Bangs said some 265 wolves were killed last year in the northern Rockies "because of cattle problems but the population still grew eight percent."

But going forward, Bangs said, "instead of having a person like me getting on a helicopter and shoot a wolf after it killed someone's cow, you'll have a hunter with a license to go out in the fall and hunt a wolf with a fair chase."

And he offered reassurances that conservationists would be keeping an eye on the nation's wolf population over the next five years.

"If the states don't do a good job over five years, we put them back on the endangered species list," he vowed.

But environmentalists decried the change as "potentially disastrous" and vowed they would sue to prevent it.

Rodger Schlickeisen, president of the environmental group Defenders of Wildlife said he would begin legal action to force a reinstatement of the wolf's protected status.

"Today's delisting is a potentially disastrous turn for a venture that began in 1995 in such a hopeful and rewarding manner (with) the restoration of wolves to their natural landscape in the West," he said.

"We all expected more from the Obama administration, which repeatedly promised it would consult with conservationists, scientists, and other stakeholders on key issues before making decisions," Schlickeisen said.

The environmental group was especially critical of the Barack Obama administration's Interior Secretary Ken Salazar, who it said "rejected our offer to work with him to find the right way to delist wolves in the region and, instead, made his surprise announcement that he was removing federal protections for vulnerable wolves with no transparency at all."

The group added: "We are moving to sue Secretary Salazar as soon as possible to overturn this misguided and unwarranted decision."

"Secretary Salazar's terrible decision leaves us no choice," Defenders of Wildlife continued.

"We will stand up for wolves and endangered species conservation by moving to challenge this delisting in court as soon as the law allows."


Read more!

Climate change 'cultural genocide' for Aborigines

Yahoo News 4 May 09;

SYDNEY (AFP) – Climate change would force Australia's Aborigines off their traditional lands, resulting in "cultural genocide" and environmental degradation, a human rights watchdog warned Monday.

Australia's original inhabitants, whose cultures stretch back many thousands of years, Aborigines would be deeply affected by the impact of global warming, the government-funded Human Rights Commission said.

Rising sea levels and soaring temperatures would make their homelands uninhabitable, severing spiritual links and laying waste to the environment, according to the commission's annual Native Title Report.

"Problems that indigenous Australians will encounter include people being forced to leave their lands, particularly in coastal areas," the report said.

"Dispossession and a loss of access to traditional lands, waters, and natural resources may be described as cultural genocide; a loss of ancestral, spiritual, totemic and language connections to lands and associated areas."

Being robbed of their traditional caretaking role for land and water resources would also result in "environmental degradation and adverse impacts on biodiversity and overall health and well-being," the commission said.

Blood-borne tropical illnesses such as malaria and dengue fever would increase, while food security for subsistence farmers and hunters and gatherers among indigenous populations would be threatened.

At the time of white settlement in 1788 Aborigines were believed to number more than one million, but now account for just 2.5 percent of the population, with an estimated 517,000 people.

A quarter of these lived in remote outback and coastal areas, with up to 80 percent of adults in these communities relying on the natural environment for their livelihoods, the report said.

They owned, controlled, used, managed or had access to about 20 percent of the Australian continent, and fishing and hunting for food were common activities. Natural resources were also used for commercial activity such as arts and crafts, and tourism.

Aborigines have much higher rates of infant mortality, health problems and suicide than other Australians, with many living in squalid camps where unemployment, alcoholism and lawlessness are rife.


Read more!

Ethanol test for Obama on climate change, science

H. Josef Hebert, Associated Press Yahoo News 3 May 09;

WASHINGTON – President Barack Obama's commitment to take on climate change and put science over politics is about to be tested as his administration faces a politically sensitive question about the widespread use of ethanol: Does it help or hurt the fight against global warming?

The Environmental Protection Agency is close to proposing ethanol standards. But two years ago, when Congress ordered a huge increase in ethanol use, lawmakers also told the agency to show that ethanol would produce less pollution linked to global warming than would gasoline.

So how will the EPA define greenhouse gas emissions from ethanol production and use? Given the political clout of farm interests, will the science conflict with the politics?

Environmentalists, citing various studies and scientific papers, say the agency must factor in more than just the direct, heat-trapping pollution from ethanol and its production. They also point to "indirect" impacts on global warming from worldwide changes in land use, including climate-threatening deforestation, as land is cleared to plant corn or other ethanol crops.

Ethanol manufacturers and agriculture interests contend the fallout from potential land use changes in the future, especially those outside the United States, have not been adequately proven or even quantified, and should not count when the EPA calculates ethanol's climate impact.

"It defies common sense that EPA would publish a proposed rule-making with harmful conclusions for biofuels based on incomplete science and inaccurate assumptions," complained Sen. Charles Grassley, R-Iowa.

He was one of 12 farm-state senators, both Democrats and Republicans, who wrote EPA Administrator Lisa Jackson in March, urging the agency to stick to assessing only the direct emissions.

Ethanol, which in the future may come from cellulosic sources such as switchgrass and wood chips, is promoted by its advocates as a "green" substitute for gasoline that will help the U.S. reduce its reliance on fossil fuels, especially foreign oil. That transition is a priority of the Obama White House.

In 2007, Congress ordered huge increases in ethanol use, requiring refiners to blend 20 billion gallons with gasoline by 2015 and a further expansion to 36 billion gallons a year by 2022.

Congress said any fuel produced in plants built after 2007 must emit 20 percent less in greenhouse gases than gasoline if it comes from corn, and 60 percent less if from cellulosic crops.

Meeting the direct emissions would not be a problem. But if indirect emissions from expected land use changes are included, ethanol probably would fail the test.

Nathaniel Greene, director of renewable energy policy at the Natural Resources Defense Council, an environmental advocacy group, said that wouldn't mean the end of ethanol.

Ethanol from existing production facilities is grandfathered and "there are ways to produce advanced ethanol's that would comply with the greenhouse thresholds," even using land use climate impacts if the industry chose to adopt them, Greene said.

But farm interests and their allies in Congress are pushing to get the EPA to at least postpone any consideration of the land-use impacts issue, arguing the science surrounding the issue is uncertain.

The senators' letter said that an overreaching regulation by EPA on ethanol's link to climate change "could seriously harm our U.S. biofuels growth strategy by introducing uncertainty and discouraging future investments."

Environmentalists say there have been enough studies on the indirect impact of ethanol on greenhouse pollution to justify the science.

Ignoring the indirect impacts "will undermine the environmental benefits" of the renewable fuels program "and set a poor precedent for any future policies attempting to reduce global warming pollution," 17 environmental group wrote Jackson in response to the senator's plea.

Greene said the EPA's handling of the ethanol rule will be a "a test of our ability to follow sound science" even when it conflicts with the interests of powerful interests.

The environmental organizations noted that Obama has "vowed to make the U.S. a leader on climate change" and put science over politics, and "now is the time to uphold those pledges."

EPA spokeswoman Andora Andy declined to say when an agency proposal — a holdover issue from the Bush administration — would be issued. Interest groups on both sides of the debate said it could come in days. The White House Office of Management and Budget concluded its review of the EPA proposal last week.


Read more!

China triples wind power capacity goal: report

Yahoo News 4 May 09;

BEIJING (AFP) – China has more than tripled its target for wind power capacity to 100 gigawatts by 2020, likely making it the world's fastest growing market for wind energy technology, state press said.

China is aiming for an annual wind power growth rate of 20 percent for the foreseeable future, Feng Junshi, an official with the National Energy Administration, told a Beijing conference, according to the China Daily.

The new target for 2020 is up from a goal of 30 gigawatts announced by the government 18 months ago, the report said.

China currently has 12 gigawatts of installed wind power, but that is set to grow to 20 gigawatts by next year, the newspaper said.

"China is powering ahead with no visible signs of slow down," the report quoted Steve Sawyer of the Brussels-based Global Wind Energy Council as saying.

"They intend to become the largest market in the world, very clearly, and they probably will unless things take off in the US again in the relatively near term."

China is currently the fourth largest producer of wind power after the United States, Germany and Spain.

In addition to vast wind power facilities in its arid north and northwest regions, China is also actively building wind farms off its eastern and southern coasts.

The country is the world's second largest energy producer, but is struggling to wean itself off its dependency on coal, which is highly polluting and blamed for emitting the greenhouse gases that cause global warming.


Read more!

Australia delays emissions trading

Amy Coopes Yahoo News 4 May 09;

SYDNEY (AFP) – Australia on Monday increased concessions for big polluters and delayed the start date of its emissions trading scheme because of the global financial crisis, in a stark shift on climate policy.

Prime Minister Kevin Rudd said the deepening global recession meant local emissions trading could not begin until July 2011, one year later than previously planned.

In a concession to green groups, Rudd said Australia would cut its greenhouse gas emissions to 25 percent of 2000 levels by 2020 -- up from 15 percent previously.

But he said the revised target would only apply if world leaders also signed up to an "ambitious" reduction goal in Copenhagen in December. Without an agreement, Australia's target will remain unchanged at five percent.

"The worst global recession since the Great Depression means we must adapt our climate change measures but not abandon them," Rudd told reporters.

"The start date of the carbon pollution reduction scheme will be delayed one year to commence from July 1, 2011."

It was a marked change in position by Rudd, who has for months insisted his government would proceed with emissions trading in 2010, despite the global market turmoil.

With Australia already suffering its worst drought in a century, the prime minister said late last year that failure to act on climate change could be disastrous, labelling any delay "reckless and irresponsible".

But in a change of tack, Rudd pushed back the trading scheme start date and said a one-year fixed-price period for carbon pollution permits would apply until July 2012 to assist businesses hit hard by the credit crunch.

Rudd said that during the fixed-price phase, an unlimited number of permits would be issued to eligible companies at a price of 10 dollars (seven US) per tonne.

He also said a "global recession buffer" would be provided for emissions-intensive trade-exposed industries, extending their pollution allowances for a "finite period".

Rudd won office on a strongly pro-green platform in late 2007 and the delay means the politically-contentious emissions trading scheme, which critics say will cost jobs, will not begin until after the next election in late 2010.

The prime minister rejected claims the changes softened his centre-left government's stance on climate change, saying the slower start would mean a "stronger, greener conclusion".

"I believe (this) is the most sensible, rational, balanced response to a fundamental change in economic circumstances," Rudd said.

If agreement was reached in Copenhagen to stabilise carbon dioxide levels in the atmosphere by at least 450 parts per million by 2050, Rudd said Australia would reduce its emissions by 25 percent by 2020.

Such an agreement would mean it was possible to save the Great Barrier Reef, Rudd said, adding that Canberra would agree to realise five percent of its commitment by purchasing international carbon credits.

Rudd, who ratified the Kyoto Protocol as his first act of government, is now faced with the task of pushing his climate laws through a hostile parliament.

Opposition party leader Malcolm Turnbull said he would not support the amended scheme, which he described as a "massive backdown" and "panic response" to criticism.

The minority Greens party accused Rudd of "browning down" his stance by giving major polluters 2.2 billion dollars in free permits, and described the revised 25 percent target as an "almost irrelevant green distraction".

Greenpeace said the concessions to industry "reek of industry lobbying" and the new scheme fell dismally short of what was required to effect real change.

But other conservation groups welcomed the pledge to more sweeping targets, while business groups commended Rudd for delaying the scheme and recognising the challenges of the economic crisis.

Australia delays emissions scheme
BBC News 4 May 09;

The Australian government says it will push back a planned carbon emissions trading scheme (ETS) by a year.

Prime Minister Kevin Rudd said the delay was necessary because of the poor economic climate.

But he also suggested that Australia could pursue tougher emissions reductions targets if an international deal was reached.

The ETS, which has been criticised by both industrial and environment groups, was due to launch in July 2010.

Business say the scheme will delay economic recovery and lead to job losses. The environmental lobby, meanwhile, says that the targets are not tough enough.

Australia has the highest per capita emissions in the developed world and coal is its biggest export.

'Appropriate response'

In a speech in Canberra, Mr Rudd said that the carbon trading scheme - requiring industrial polluters to buy licences to emit carbon - would be pushed back until July 2011.

"The worst global recession since the great depression means we must adapt our climate change measures but not abandon them," he said.

A one-year fixed price period would be introduced for the first year, he said, with carbon permits costing A$10 ($7, £5) per tonne, followed by a floating price until July 2013.

"This, we believe represents an appropriate response to current uncertainty," he said.

But - in a move aimed at the environment lobby - Mr Rudd said that the range of the emissions reduction target could be increased up to 25% of 2000 levels if other nations agreed similar targets.

The previous target was to reduce emissions by between 5 and 15% of 2000 levels by 2020.

Mr Rudd needs the support of Greens senators to pass the carbon trading legislation.

He admitted that he had been under pressure from industry and the resources sector to delay the scheme, reports the BBC's Nick Bryant, in Sydney.

He also conceded that there had been international pressure on Australia to make deeper cuts in emissions.

The policy changes reflect the difficulties of reconciling the needs of the domestic economy against global expectations, our correspondent says.

Australia's Tougher CO2 Target Good For Climate Talks
David Fogarty, PlanetArk 5 May 09;

SINGAPORE - Australia has given UN climate talks a boost by saying it could toughen emissions targets by 2020, something developing countries want from richer nations as the world tries to seal a broader climate pact.

But the government also bowed to industry demands as it announced on Monday a delay to the start of emissions trading by a year until July 2011, raising doubts that fighting climate change was still top of the political agenda amid a recession.

Australia has tried to project itself as a leader in UN climate negotiations and emissions trading since Prime Minister Kevin Rudd won office in late 2007 and ratified the Kyoto Protocol as his first official act.

But the world's top coal exporter, and a big producer of steel, aluminium and liquefied natural gas, is now more of a laggard as it struggles to cut the nation's carbon pollution, among the world's highest per capita.

"Australia has delivered a mixed message to the rest of the world. A delayed start to the emission trading scheme suggests a reduced importance of tackling climate change," climate policy and development expert Matthew Clarke told Reuters.

"However, the increased reduction target highlights a strong commitment to reducing Australian carbon emissions," added Clarke, of the School of International and Political Studies at Deakin University in Melbourne.

The government said it would back a 25 percent cut in emissions from 2000 levels by 2020 if other rich nations agreed something similar as part of deal at the end of the year to replace the Kyoto Protocol.

The previous range of 5 to 15 percent is well below the UN Climate Panel's finding that developed nations need to cut their emissions between 25 to 40 percent below 1990 levels by 2020.

Delegates from nearly 200 nations meet at the end of the year in the Danish capital to try to agree on the broad outlines of a pact to replace Kyoto from 2013.

EYES ON THE TARGET

China, India and other big developing nations have demanded cuts of 25-40 percent as well as substantial funding for climate change adaptation and transfer of affordable clean-energy technology to earn their support for a post-Kyoto deal.

The administration of US President Barack Obama is also trying to get emissions trading legislation through Congress and will be eyeing closely what Australia is doing.

"The fact the government's signalled 25 percent, which is still very difficult to achieve, that will seen as positive by the United States," said Greg Bourne, CEO of environmental campaigners WWF-Australia.

"They won't care about the emissions trading scheme slowdown," he told Reuters. "They'll see that as just a pragmatic thing to do during a global financial crisis and they may have to do something similar."

Obama has pledged to cut US emissions back to 1990 levels by 2020, or about 15 percent down from 2000 levels.

Academic Ian Lowe, president of the Australian Conservation Foundation, described the 25 percent target as a significant step forward.

"It puts Australia in a leadership position along with the EU in relation to developed countries targets which will be crucial for a sound Copenhagen outcome," he said. The EU backs a 20 percent emissions cut by 2020 from 1990 levels, up to 30 percent if other rich nations agree on deep reductions.

Yet doubts remain on the strength of Australia's commitment.

"The global financial crisis may now be seen as a reason to delay action on climate change. Therefore, pressure to deliver a post-Kyoto agreement at Copenhagen at the end of this year may now be reduced," said Clarke in a response to questions emailed by Reuters.

The Australian Greens, whose support for the emissions trading laws in the Senate will be crucial in coming weeks, said the 25 percent target was not good enough. "The Rudd Government has put such stringent conditions on their 25 percent target that no-one internationally could have any faith that they will actually move," Australian Greens Deputy Leader Senator Christine Milne told Reuters.

Others said the decision to delay the carbon scheme was not a sign Australia was shying away from cutting emissions.

"Given that what we are negotiating internationally now is not scheduled to enter into force until 2013, we are not so concerned with the one-year delay in the Australian trading scheme," said Kim Carstensen, the head of WWF International's Global Climate Initiative.

"We see the new Australian announcements as a clear signal to the world -- and also to Australia's citizens and industries -- of the direction and the level of ambition we can expect, and that is the most important thing."

(Editing by Michael Urquhart)


Read more!

US supports reducing climate-warming gases

John Heilprin, Associated Press Yahoo News 4 May 09;

UNITED NATIONS – The Obama administration called hydrofluorocarbons widely used in refrigerators and air conditioners "a very significant" threat to climate change Monday, and expressed a preference for drastically reducing HFCs that are promoted under the U.N.'s ozone treaty rather than phasing them out entirely.

But a senior State Department official stopped short of endorsing a formal proposal last week by the two small island nations of Micronesia and Mauritius to alter the ozone treaty known as the Montreal Protocol by cutting HFCs by 90 percent by 2030.

The treaty promotes the use of HFCs, a class of powerful greenhouse gases, to replace ozone-depleting chlorofluorocarbons, or CFCs, that have now been virtually eliminated. But while HFCs do not harm the ozone layer, they are especially potent greenhouse gases — up to 10,000 times more so than carbon dioxide.

Micronesia and Mauritius wanted to include an HFCs phase-out in the ozone treaty discussions planned for November, calling it a dire matter of survival for their island inhabitants as sea levels rise.

The deadline for making such a proposal was this week.

0fficials at the State Department, the Environmental Protection Agency and the Defense Department had all backed a reduction of HFCs, but the idea ran into some resistance in the White House during a year when the administration is considering all its negotiating chips for the successor to the Kyoto climate treaty that expires in 2012.

The United States ran out of time "to complete the analysis needed to understand the potential impacts of such an approach or to consider how amending the Montreal Protocol to address HFCs would affect negotiations ... with respect to the post-2012 period," Daniel Reifsnyder, a deputy assistant secretary for environment and sustainable development, wrote in a letter to U.N. Ozone Secretariat Marco Gonzalez.

"We plan to continue actively studying and analyzing this issue," he wrote.

Proponents of the idea were disappointed.

"We cannot hesitate as a third of our future global warming emissions hang in the balance. We need action — and U.S. leadership — this year," said Alexander von Bismarck, executive director of the Environmental Investigation Agency, a nonprofit watchdog group in Washington that first pitched the idea two years ago.

Only about 2 percent of the globe's climate-warming gases are currently HFCs, but those are expected to grow to up to about a third of all greenhouse gases about two to four decades from now because of their promotion for a host of household goods that once used CFCs.

Some manufacturers, however, have already begun to replace HFCs with so-called natural refrigerants such as hydrocarbons, ammonia or carbon dioxide. Companies like Delaware-based DuPont Fluorochemicals, one of only five U.S. manufacturers of HFCs, say they support a global "phase-down" of HFCs to about one-fifth of their current use.

The U.S. market for HFCs is estimated at $1 billion, about a third to one-half what it is globally.

Senate Foreign Relations Chairman John Kerry said Monday that "HFCs are significantly more powerful greenhouse gases than carbon dioxide, and the damage is only going to grow if we don't act in the short term."

He said in reaction to the administration's letter that President Barack Obama now "clearly recognizes the impact of HFCs, and I'm confident he'll work with Congress to find a way to address this growing challenge in the best and quickest way possible."

Last week, Kerry had joined with another leading Democrat, Senate Environment Chairwoman Barbara Boxer, in urging Obama to express strong support for using the ozone treaty to phase down HFCs by 85 percent by 2030.

In contrast to the proposed phase-down, Reifsnyder noted that a preliminary EPA analysis is based on "stepwise reductions" which would reduce HFCs by 85 by 2039. Legislation before the House already calls for U.S. reductions in HFCs.

US Says Wants To Cut Potent HFC Greenhouse Gases
Jeff Mason and Arshad Mohammed, PlanetArk 5 May 09;

WASHINGTON - The United States intends to work toward reducing emissions of potent greenhouse gases found in refrigerators and air conditioning systems but has not yet decided which international venue to use to advance the issue, US officials said on Monday.

In a letter to a UN agency, the US State Department said hydrofluorocarbons, known as HFCs, "pose a very significant further threat to the climate system because of their high global warming potentials."

The letter, by Deputy Assistant Secretary of State Daniel Reifsnyder, indicated that the United States wanted to reduce the gases but had not decided whether to do so under the Montreal Protocol, which regulates hydrochlorofluorocarbons (HCFCs), which are blamed for depleting the ozone layer, or through separate UN talks on climate change.

"The United States has been extremely interested in how best to address the projected future growth of HFCs and how to promote the development of technically and economically feasible alternatives," the letter said.

"While uses now of HFCs are relatively small, they are projected to increase dramatically in future years as (countries) transition out of HCFCs and as the market for air conditioning and refrigeration in developing countries grows."

Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer decided in 2007 to speed up plans to phase out ozone-depleting HCFCs, but the most likely alternative to these gases are climate-warming HFCs.

"Thus, we risk solving one global environmental problem while possibly exacerbating another unless alternatives can be found," the letter said.

A senior administration official said the letter was meant to signal a US desire to move forward on the issue despite not having decided on the best venue.

"The purpose for doing this is to signal that we're really serious about reducing HFCs," the official, who asked not to be named, told Reuters.

Nations are meeting in Copenhagen in December to hammer out a climate treaty to take over for the Kyoto Protocol, which curbs greenhouse gas emissions. A Copenhagen agreement could also cover HFCs.

Reifsnyder wrote that Washington had not yet decided whether the Montreal treaty should be amended to gradually reduce HFCs but emphasized a US interest in addressing their expected growth promoting alternatives.

"We are conscious that alternatives exist today for some uses of HFCs, but not all. For this reason, seeking to phase down the consumption and production of HFCs would be preferable to phasing out such consumption and production," he said.

(Editing by Will Dunham)


Read more!

Sun Oddly Quiet -- Hints at Next "Little Ice Age"?

Anne Minard, National Geographic News 4 May 09

A prolonged lull in solar activity has astrophysicists glued to their telescopes waiting to see what the sun will do next—and how Earth's climate might respond.

The sun is the least active it's been in decades and the dimmest in a hundred years. The lull is causing some scientists to recall the Little Ice Age, an unusual cold spell in Europe and North America, which lasted from about 1300 to 1850.

The coldest period of the Little Ice Age, between 1645 and 1715, has been linked to a deep dip in solar storms known as the Maunder Minimum.

During that time, access to Greenland was largely cut off by ice, and canals in Holland routinely froze solid. Glaciers in the Alps engulfed whole villages, and sea ice increased so much that no open water flowed around Iceland in the year 1695.

But researchers are on guard against their concerns about a new cold snap being misinterpreted.

"[Global warming] skeptics tend to leap forward," said Mike Lockwood, a solar terrestrial physicist at the University of Southampton in the U.K. (Get the facts about global warming.)

He and other researchers are therefore engaged in what they call "preemptive denial" of a solar minimum leading to global cooling.

Even if the current solar lull is the beginning of a prolonged quiet, the scientists say, the star's effects on climate will pale in contrast with the influence of human-made greenhouse gases such as carbon dioxide (CO2).

"I think you have to bear in mind that the CO2 is a good 50 to 60 percent higher than normal, whereas the decline in solar output is a few hundredths of one percent down," Lockwood said. "I think that helps keep it in perspective."

(Related: "Don't Blame Sun for Global Warming, Study Says.")

Local Cooling

For hundreds of years scientists have used the number of observable sunspots to trace the sun's roughly 11-year cycles of activity.

Sunspots, which can be visible without a telescope, are dark regions that indicate intense magnetic activity on the sun's surface. Such solar storms send bursts of charged particles hurtling toward Earth that can spark auroras, disrupt satellites, and even knock out electrical grids.

In the current cycle, 2008 was supposed to have been the low point, and this year the sunspot numbers should have begun to climb.

But of the first 90 days of 2009, 78 have been sunspot free. Researchers also say the sun is the dimmest it's been in a hundred years.

The Maunder Minimum corresponded to a profound lull in sunspots—astronomers at the time recorded just 50 in a 30-year period.

If the sun again sinks into a similar depression, at least one preliminary model has suggested that cool spots could crop up in regions of Europe, the United States, and Siberia.

During the previous event, though, many parts of the world were not affected at all, said Jeffrey Hall, an astronomer and associate director at Lowell Observatory in Flagstaff, Arizona.

"Even a grand minimum like that was not having a global effect," he said.

Wild Cards and Uncertainties

Changes in the sun's activity can affect Earth in other ways, too.

For example, ultraviolet (UV) light from the sun is not bottoming out the same way it did during the past few visual minima.

"The visible light doesn't vary that much, but UV varies 20 percent, [and] x-rays can vary by a factor of ten," Hall said. "What we don't understand so well is the impact of that differing spectral irradiance."

Solar UV light, for example, affects mostly the upper layers of Earth's atmosphere, where the effects are not as noticeable to humans. But some researchers suspect those effects could trickle down into the lower layers, where weather happens.

In general, recent research has been building a case that the sun has a slightly bigger influence on Earth's climate than most theories have predicted.

Atmospheric wild cards, such as UV radiation, could be part of the explanation, said the University of Southampton's Lockwood.

In the meantime, he and other experts caution against relying on future solar lulls to help mitigate global warming.

"There are many uncertainties," said Jose Abreu, a doctoral candidate at the Swiss government's research institute Eawag.

"We don't know the sensitivity of the climate to changes in solar intensity. In my opinion, I wouldn't play with things I don't know."

Sun 'at its quietest for 100 years'
Press Association 21 Apr 09;

With fewer sunspots and solar flares, the sun is at its quietest for almost a century.

Scientists believe the conditions provide a new opportunity to study the sun's confusing cycle of activity.

Space telescopes can be used during the extended "solar minimum" to study the sun in more detail than ever before.

More than 1,000 astronomers and space scientists have gathered at the University of Hertfordshire for the European Week of Astronomy and Space Science, where they are discussing the issue.

The sun normally undergoes an 11-year cycle. At its peak the sun shoots out flares, gases and materials, and dozens of sunspots can be seen. It then goes through a period of calm. Scientists have little idea why these cycles happen, how they affect the earth and when the current low will end.

Sunspots - areas of intense magnetic fields that form on the sun's surface - are the easiest way of measuring solar activity. The number of sunspots in recent months has been the lowest since 1913. There has also been a 50-year low in solar wind pressure and a 55-year low in radio emissions.

Dr Jim Wild, who studies links between the earth and sun at Lancaster University, said: "The sun has these periods where its activity goes from being very active to being very quiet and we've known about these cycles for hundreds of year but this time the solar minimum is lasting longer than it usually does and it's a bit deeper.

"It's part of the usual trend but at the same time it's a bit different. It's probably the quietest it has been for about a hundred years.

"Nobody really understands what controls these cycles and the variation between the cycles. Because it is very quiet this is the first chance we have had to use state of the art diagnosis to study what is going on. We can study the sun as never before."

Speaking from the conference, he added: "Nobody has their head in their hands thinking we're all doomed."

Related article
Solar activity 'not behind climate change', 'No Sun link' to climate change, Richard Black, BBC News 3 Apr 08;


Read more!