LATimes 5 Aug 09;
The federal government must take decisive action to avoid "a potentially catastrophic loss of animal and plant life," in the National Parks, according to a new report which details the impact of global warming on the nation's most treasured public lands.
The 53-page report from the National Parks and Conservation Association, a Washington-based advocacy group, details a litany of concerns related to climate change in the parks, from the bleaching of coral reefs in Florida to the disappearance of high-altitude ponds that nurture yellow-legged frogs in California.
The group, which has offices in California and 10 other states, called on the National Park Service to come up with a detailed plan and funding to adapt to temperature-related ecosystem changes.
"Right now, no national plan exists to manage wildlife throughout their habitat, which often is a patchwork of lands managed by multiple federal agencies, states, tribes, municipalities and private landholders," wrote Tom C. Kiernan, president of the group.
A major climate bill passed by the House in June would allocate more than $500 million a year to natural resources adaptation under a proposed carbon-trading program. The Senate is drafting a companion bill, but the outcome of the legislation remains uncertain.
The survey by the parks and conservation group reinforces recent testimony by President Obama's nominee for Park Service director, Jon Jarvis. "Climate change challenges the very foundation of the National Park system and our abiilty to leave America's natural and cultural heritage unimpaired for future generations,"Jarvis told a House subcommittee.
He suggested that "national park units can serve as the proverbial canary in the coal mine, a place where we can monitor and document ecosystem change without many of the stressors that are found on other public lands."
The report recommends adapation strategies including the creation of wildlife corridors stretching from one park to another, so that species can move unencumbered into cooler areas. It also recommends more effective limiting of existing environmental hazards.
"Air and water pollution, development of adjacent wild lands, logging and mining and other forces are harming national park wildlife now, and adding climate change to the mix could be disastrous," it said.
Pesticides from nearby farms and the spread of non-native trout have already decimated populations of yellow-legged frogs in Yosemite, Sequoia and Kings Canyon national parks. With global warming, a rapid melting of high Sierra snowpacks could eliminate many shallow ponds and streams that the amphibians need for survival, leaving them "high and dry," it said.
Salmon could disappear from Olympic, North Cascades and Mount Rainier National Parks, the report suggests. And Grizzly bears, birds, fish and other species in Yellowstone and Rocky Mountain national parks could decline as bark beetles, drought and other climate-induced conditions increase.
The report suggests that park officials work with private landowners around Arches, Canyonlands and Capitol Reef national parks to create pathways for bighorn sheep, as precipitation and vegetation patterns change due to global warming.
Likewise, wildlife managers in Alasan Parks such as the Noatak and Bering Land Bridge national preserves, the Kobuk Valley National Park and Gates of the Arctic National Park & Preserve will need to insure a clear path for caribou heards as climate change renders traditional calving grounds and winter feeding areas unsuitable, the report said.
But adaptation to a changing climate may not be enough. Unless humans limit their emissions of greenhouse gases, the report concludes, some wildlife species "will not be able to endure much more change and could disappear from national parks and even go extinct if climate change is unchecked."
The impetus for federal adaptation plans comes as states such as California, which released a comprehensive plan this week, and cities such as New York and New Orleans are beginning to come to grips with expected climate impacts such as rising sea levels and water shortages.
--Margot Roosevelt
