Monday, February 14, 2011

Climate Change Hits Alaskan Wilderness



National Parks in Alaska, many of which include significant chunks of wilderness, are being reshaped by climate changes. In many ways, this could fundamentally change the way that parks, and the wilderness areas in those parks, are managed. A recent article in Reuters looks at how the National Park Service is monitoring climate change in Alaskan national parks.

From the article:

ANCHORAGE, Alaska (Reuters) – Thawing permafrost triggers mudslides on a road traveled by busloads of sightseers. Tall bushes on the tundra block panoramic views and the rapid melting of glaciers poses new flood risks.

These are just a few of the ways a rapidly warming climate is reshaping Denali, Kenai Fjords and other national parks -- the crown jewels of Alaska's heritage as America's last frontier.

These and some better-known impacts -- proliferation of invasive plants and fish, greater frequency and intensity of wildfires, and declines in wildlife populations that depend on sea ice and glaciers -- are outlined in a recent National Park Service report.
Since the mid-1970s, Alaska has warmed at three times the rate of the Lower 48 states, according to the U.S. Environmental Protection Agency. And with nearly two-thirds of U.S. national parkland located in Alaska, the issue of climate change is especially pressing there, officials say.

In some far northern parks such as Gates of the Arctic, average temperatures are expected to shift in coming years from below freezing to above freezing, crossing a crucial threshold, said Bob Winfree, Alaska science adviser for the Park Service.

Read the full article here: http://news.yahoo.com/s/nm/us_alaska_climate

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