Showing posts with label rising-seas. Show all posts
Showing posts with label rising-seas. Show all posts

Fighting rising sea levels: 5 approaches from around the world

TESSA OH Today Online 28 Aug 19;

SINGAPORE — Singapore is not alone in assessing measures to mitigate the threat of rising sea levels. 

During the National Day Rally on Aug 18, Prime Minister Lee Hsien Loong announced that Singapore is prepared to invest about S$100 billion or more over the next 50 to 100 years to strengthen its coastlines against the threat of rising sea levels.

Significant areas of Singapore are 4m above mean sea level or lower, and they will increasingly be at risk of going underwater when sea levels rise, he warned.

To combat the looming threat, various climate change measures are being considered by the Government. They include plans to build polders — low-lying reclaimed land protected by embankments — along with reclaiming offshore islands or building dykes.

TODAY looks at some of the coastline and river defence measures that have been considered or implemented in other cities across the world that are also seeking to strengthen their flood prevention systems.


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Indonesia: Jokowi names Penajam Paser Utara as new capital city site


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Explainer: How much time does Singapore have to build up its response to climate change?

NAVENE ELANGOVAN Today Online 24 Aug 19;

SINGAPORE —  A “50- to 100-year problem” was how Prime Minister Lee Hsien Loong described the “grave threat” of rising sea levels to Singapore.

While a hundred years from now seems far away, Singapore has already started to feel the impact of climate change with hotter weather and heavier rainfall in recent years. Studies have also shown that Singapore could experience more extreme weather patterns as soon as 2050. 

Indeed, steps are already underway to mitigate the impact of rising sea levels. For example, Singapore has introduced a carbon tax to nudge companies to cut down on greenhouse gas emissions. It has also begun building infrastructure such as train stations on elevated ground. 

More measures are in the pipeline. How much time does Singapore have to make sure that it is sufficiently ready? TODAY takes a closer look.


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Commentary: How effectively can Singapore adapt to sea level rise?

Even as Singapore strives to adapt to rising sea levels, let’s not win that battle yet end up losing the larger war against climate change, says the Singapore Management University’s Winston Chow.
Winston Chow Channel NewsAsia 25 Aug 19;

SINGAPORE: Singapore isn’t alone in confronting the consequences of rising seas.

Several other coastal cities and small islands also face this hazard, and lessons can be drawn from how they plan for and adapt to it.

Recent research shows three general approaches can be considered when dealing with the threat of sea level rise. First, accommodate the threat, which includes flood-proofing existing buildings and infrastructure, or designating areas that would be allowed to flood during high tide.

Second, retreat from the threat, which includes the removal and reallocation of key infrastructure and assets to areas that the sea cannot inundate.

Third, protection from the threat, which includes planting and managing mangrove coasts, or engineered options like sea walls, land reclamation and polders described during Prime Minister Lee Hsien Loong’s National Day Rally speech.


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Rising sea levels: Not urgent or too close to home? Residents in the east give their views

NAVENE ELANGOVAN Today Online 22 Aug 19;

SINGAPORE — One was so assured that she would encourage her children to live near Singapore’s eastern coastline even 50 to 100 years from now.

Another wondered if construction work being done to deal with rising sea levels would block the views from his flat.

In getting a quick gauge of how residents living in the eastern part of Singapore think about the future impact of climate change, TODAY found that for some of them, climate change was too far down the road to be a cause for worry.

Others were impressed that the environmental issue was finally getting national attention, but all were generally supportive of the measures to counter the problems related to it.


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What if Singapore does not have 50 to 100 years to deal with climate change?

BENJAMIN HORTON Today Online 21 Aug 19;

I watched Prime Minister Lee Hsien Loong’s National Day Rally speech on Sunday (Aug 18) night. It was the single most impressive talk about the threat of sea-level rise by a political leader.

In particular, Mr Lee balanced talk of urgency with hopeful and creative ideas to inspire positive change. Mr Lee made it clear that climate change is a matter of life and death for Singapore.

Having studied the issue for 25 years, I am also very worried about sea-level rise and strongly believe that we must urgently act on it. I am the only scientist in Singapore to be part of the United Nation’s Intergovernmental Panel on Climate Change (IPCC) working group that produced a report on the physical science of climate change. 

There is a phrase “if you knew what I knew”. Mr Lee noted that the UN has projected that sea levels will rise by 1m by the end of this century but that scientists’ estimates have been going up and sea levels may rise higher and faster than that.

I would say that we should be careful about underestimating the risk. Published peer reviewed studies by myself and other members of the IPCC suggest there is a one in 20 chance sea-level rise in Singapore could be in excess of 2.5m by 2100.


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‘Calamity may come’ if Singapore doesn’t take care of its coastlines now: Masagos Zulkifli

The Minister for the Environment and Water Resources also shared more on the citizens’ workgroup, saying one problem it will look at is how to increase the recyclability of items in neighbourhood blue bins.
Kevin Kwang Channel NewsAsia 21 Aug 19;

SINGAPORE: Calamity could befall Singapore if it does not start dealing with the climate change threat to its coastlines today and leaves it until it is too late, warned Minister for Environment and Water Resources Masagos Zulkifli on Wednesday (Aug 21).

In an interview with CNA938, Mr Masagos reiterated the threat of rising sea levels to Singapore that Prime Minister Lee Hsien Loong had spoken about in his National Day Rally speech on Sunday.

Mr Masagos said that scientists have concluded that sea levels will rise by 1m by the end of the century, and when faced together with high tide and heavy rain, will become a “very difficult problem to overcome”.

The long-term impact will not just be on the environment, but also on Singapore’s economy and jobs, said Mr Masagos, adding that this is precisely why Singapore has to take immediate and long-term measures to ensure its coastlines are well protected.

“This problem is going to come upon us slowly over the next century, over the decades,” he said.

“If we start now, we can certainly build over time. If we start too late, then calamity may just come over us.”


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Engineering solutions to tackle rising sea levels important but more research vital: Experts

Matthew Mohan Channel NewsAsia 19 Aug 19;

SINGAPORE: Experts on Monday (Aug 19) welcomed the possibility of implementing engineering solutions such as land reclamation to tackle rising sea levels but stressed the need for more research into the impact of climate change.

This follows Prime Minister Lee Hsien Loong's National Day Rally speech on Sunday (Aug 18), during which he highlighted that Singapore is susceptible to the effects of climate change and vulnerable to rising sea levels.

As part of strengthening the Republic's coastal defences, Mr Lee explained that one solution could be a reclamation method known as empoldering.

Polders are created by first building a seawall in the water, before pumping out the water behind the seawall to create dry land. This land can be lower than the sea level, but water has to be continually pumped out.

Another alternative would be to reclaim a series of islands offshore, from Marina East to Changi, said Mr Lee. In addition, there are also plans to build a second pump house at Marina Barrage, he added.

Speaking to CNA, Associate Professor Adam Switzer of Nanyang Technological University's (NTU) Earth Observatory of Singapore (EOS) said that "carefully engineered reclamations and flood defences including polders" could be the "best option" for Singapore.


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NDR 2019: It could cost S$100 billion or more to protect Singapore against rising sea levels, PM Lee says

Matthew Mohan Channel NewsAsia 18 Aug 19;

SINGAPORE: Tackling the “50 to 100-year problem” of rising sea levels could cost Singapore around S$100 billion or more, said Prime Minister Lee Hsien Loong on Sunday (Aug 18).

In his English National Day Rally speech, Mr Lee highlighted that Singapore is susceptible to the effects of climate change and especially vulnerable to rising sea levels.

“How much will it cost, to protect ourselves against rising sea levels? My guess is probably S$100 billion over 100 years, quite possibly more,” said Mr Lee.

“If we only have 10 years to solve the problem, we won’t have have the time or resources to do it. But because this is a 50 to 100-year problem, we can implement a 50 to 100-year solution.”

Climate change defences should be treated with utmost seriousness, just like the Singapore Armed Forces (SAF), said Mr Lee.

He said there is a need to “work steadily at it, maintain a stable budget year after year, keep your eye on the target and do it over many years and several generations”.


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NDR 2019: Climate change one of the 'gravest challenges facing mankind', impact on Singapore to worsen, says PM Lee

Matthew Mohan Channel NewsAsia 18 Aug 19;

SINGAPORE: Climate change is one of the gravest challenges the human race faces and Singapore is already feeling its impact - which is likely to worsen over the next few decades, said Prime Minister Lee Hsien Loong on Sunday (Aug 18).

“Climate change may seem abstract and distant for many of us, but it is one of the gravest challenges facing humankind,” said Mr Lee in his National Day Rally speech.

The Earth’s average temperature has increased by 1 degree Celsius compared to pre-industrial times over 100 years ago, pointed out Mr Lee.

This is a result of more carbon dioxide pumped into the atmosphere due to of human activity. The gas builds up, traps heat from the sun, causing the planet to warm up.

“One degree Celsius doesn’t sound like much, but it is very significant,” Mr Lee said. “Furthermore, temperatures are continuing to rise, faster and faster.”


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Indonesia: Jokowi announces Kalimantan to host Indonesia's new capital city

Antara 16 Aug 19;

Jakarta (ANTARA) - President Joko Widodo reiterated on Friday morning that Kalimantan Island would serve as a host for Indonesia's new capital city.

“At this historical moment, in the name of Allah Subhanahu Wa Taala , I'd like to ask permission and support from the members of House of Representatives, respected members of the country, and the people in Indonesia to move the capital city to Kalimantan Island,” President Joko Widodo (Jokowi) said during the state of the nation address.


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9 in 10 S'pore youths willing to do their part for the environment, but want Govt to do more: Survey

NAVENE ELANGOVAN Today Online 7 Aug 19;

SINGAPORE — A survey by Mediacorp has found that the vast majority of Singapore youths are concerned about the impact of climate change and want to do their part to address the problem.

At the same time, they also want the Government to do more on this front — with nearly a third of those aged between 18 and 24, for example, believing that Singapore’s current infrastructure is inadequate to withstand the impact of climate change.

Conducted between July 20 and 24, the online survey polled 1,002 Singaporeans and permanent residents aged 18 and above on their views about climate change and the Government's actions on the issue. Days before the survey was carried out, Environment and Water Resources Minister Masagos Zulkifli described climate change as a “pressing priority and existential challenge”.


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Explainer: Can artificial snow save the West Antarctic ice sheet and prevent sea levels from rising?

KIMBERLY LIM AND LAUREN ONG Today Online 28 Jun 19;

SINGAPORE — With the West Antarctic ice sheet starting to melt, which can lead to a rise in sea levels, a team of researchers has come up with a radical proposal: To artificially create snow to thicken up the ice sheet.

The team proposed using over 12,000 wind turbines to pump cold water from the sea onto the surface to create snow, which then becomes part of the ice sheet.

The study, released on Wednesday (July 17), was led by a professor from the Potsdam Institute for Climate Impact Research in Germany, Adam Levermann, who told Reuters: “We are already at a point of no return if we don’t do anything.”

However, the team cautioned that “the practical realisation of elevating and distributing the ocean water would mean an unprecedented effort for humankind in one of the harshest environments of the planet”.

TODAY spoke to several experts to find out how feasible the proposal is.


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Indonesia: Sea-level rise poses threat to Jakarta, Semarang, Demak coastal areas

Antara 25 Jul 19;

Jakarta (ANTARA) - Rising sea levels and decreasing land surface, driven by global climate change, pose an existential crisis to coastal communities in Jakarta, Semarang, and Demak.

Experts project that this threat will potentially inflict a huge financial and emotional toll on residents in these areas owing to loss or damage to property, among others repercussions.

Experts have forecast sea levels to rise 25 to 50 centimeters in 2050, and by 2100, the seawater will inundate most coastal cities in Indonesia.


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As time runs out on the climate crisis, Singapore prepares to address the cost of adapting

The threat of climate change is long term, the size of the investments concerned could be unprecedented and fundamental shifts in how the Government is structured may be needed.
Jaime Ho Channel NewsAsia 21 Jul 19;

SINGAPORE: The tone in Environment and Water Resources Minister Masagos Zulkifli’s speech on Wednesday (Jul 17) was unmistakable.

In outlining ongoing extreme weather events worldwide, both closer to home and across Europe and Asia, Mr Masagos said that “time is running out” in the world’s collective ability to avert the calamity that will come if current trends persist.

Last year, the United Nations’ Intergovernmental Panel on Climate Change (IPCC), the pinnacle of global scientific research on climate, projected with “high confidence” that global warming is likely to reach 1.5 degrees Celsius between 2030 and 2052.

2030 is 11 years away.

The time has therefore come for clear-eyed assessments of what more must be done.


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Can Singapore and rest of South-east Asia rise to the challenge of surging seas?

BENJAMIN HORTON Today Online 18 Jul 19;

The Government announced in March that it will start a National Sea Level Programme this year to bring together research expertise and better understand how rising sea levels will impact Singapore.

On Wednesday (July 17), Environment and Water Resources Minister Masagos Zulkifli said that the Government will set aside S$10 million in funding for the programme over the next five years and set up a new office to strengthen Singapore’s capabilities in climate science.

Why are sea levels rising and how will it affect the region and Singapore? And what can we do about it?


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‘Time is running out’: Tackling climate change a priority for Singapore, says Masagos

Matthew Mohan Channel NewsAsia 17 Jul 19;

SINGAPORE: Facing the “loud and unmistakable” warning of climate change, Singapore needs to act, said Minister for the Environment and Water Resources Masagos Zulkifli on Wednesday (Jul 17).

Speaking at the 2019 Partners for the Environment forum, Mr Masagos stressed that tackling climate change is a “pressing priority” and an “existential challenge” for Singapore.

“Time is running out,” he said. “Last year, the Intergovernmental Panel on Climate Change issued one of the starkest warnings from the scientific community – an increase of 1.5 degrees Celsius in global warming could occur as early as 2030.

“The warning is loud and unmistakable: We must act now or we may well face the ultimate threat to human survival ... the end of ‘life as usual’.”


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Indonesia has lost land equal to size of Jakarta in last 15 years

Kharishar Kahfi The Jakarta Post 7 Jul 19;

Ever since taking office in Flores, East Nusa Tenggara, in December, Nagekeo Regent Johanes Don Bosco Do has been receiving grim reports from residents living in coastal areas in the northern and southern parts of the regency.

According to observations from local officials and residents, waves from the Flores Sea have eroded the coast of Aeramo village, the region’s most populous village with 6,000 people, by 3 to 4 meters each year.

“I have seen firsthand that beaches are facing erosion,” Johanes said.

Indonesia, the world’s largest archipelagic nation, is losing its coastal areas due to rising sea levels and unsustainable economic activities.


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Temperatures in Singapore could hit 40°C as early as 2045: Scientists

LOW YOUJIN Today Online 4 Jul 19;

SINGAPORE — By 2045, Singaporeans could face some days of the year when temperatures soar as high as a scorching 40°C.

At best, this sweltering scenario could be delayed to as late as 2065 onwards, according to a suite of simulations conducted by a team of scientists at the Centre for Climate Research Singapore, which is part of the Meteorological Service Singapore.

Dr Muhammad Eeqmal Hassim, a senior research scientist at the centre, told TODAY on Thursday (July 4) that this is the worst case scenario if the world continues to emit greenhouse gases at a rate that is “business as usual”.

“It (days of 40°C) won’t be a one-off event. There'll be some days starting from as early as 2045. And that's what we saw in the results. Some models are later. And so that's why we tend to give a range (that is) as early as 2045, possibly, or as late as 2065 onwards,’’ he said.

The scientist’s dire warnings come on the back of a recent four-day heatwave across western Europe that killed at least seven people.


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Singapore must continue to take early action against impact of climate change: Teo Chee Hean

Lester Wong Straits Times 4 Jul 19;

SINGAPORE - As a small, low-lying island state, Singapore will continue to take preventive action against the impact of climate change, Senior Minister Teo Chee Hean said on Thursday (July 4).

Mr Teo drew attention in particular to the Republic's efforts in going low-carbon and managing rising sea levels in a speech at the sixth Asian edition of the Shell Powering Progress Together forum.

Singapore raised the minimum level for newly reclaimed land by 1m in 2011, a move that preceded the Intergovernmental Panel on Climate Change's (IPCC) most recent report in 2014 by three years.


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