EDIT
Last month, the state of Alaska under Palin's guidance sued Interior Secretary Dirk Kempthorne in an attempt to reverse his decision to list polar bears as a threatened species. Palin said that scientists' predictions that global warming would eliminate the ice where the bears live in summer were unreliable.
Arctic sea ice shrank to a record low by the end of last summer, and satellites now show that the ice has been reduced to a level very close to last year's with some days remaining before a new winter season begins.
The Anchorage Daily News reported in May that the head of the marine mammals program for the Alaska Department of Fish and Game and two other marine mammal biologists on his staff agreed with nine studies the Federal Government cited to justify listing polar bears as a threatened species.
Their email appeared to contradict Palin's assertions that state wildlife officials had found no reason to list the bears as threatened under the Endangered Species Act. Palin wrote in January that she based her opposition to listing the bears on "a comprehensive review by state wildlife officials of scientific information from a broad range of climate, ice and polar bear experts".
EDIT
http://www.smh.com.au/news/global-warming/palin-questions-global-warming-science/2008/08/31/1220121106694.html