Hot times in Alaska

"Alaska is warming up. It's now a few degrees warmer than it was a century and a half ago, and the trend seems to be accelerating. Already the landscape is changing dramatically -- permafrost is thawing, glaciers are melting, forests are succumbing to drought and insect attack. Alan Alda meets Alaskan scientists who are working to find out if these are the first signs of global warming and what the future may hold."@en
"Alaska is warming up. It's now a few degrees warmer than it was a century and a half ago, and the trend seems to be accelerating. Already the landscape is changing dramatically -- permafrost is thawing, glaciers are melting, forests are succumbing to drought and insect attack. Alan Alda meets Alaskan scientists who are working to find out if these are the first signs of global warming and what the future may hold."
"The earth is heating up and the signs of global warming are all around us. Find out what's already happening in Alaska and why The Gulf Stream, the great ocean conveyer belt, is in real danger of shutting down."@en
"The earth is heating up and the signs of global warming are all around us. Find out what's already happening in Alaska and why The Gulf Stream, the great ocean conveyer belt, is in real danger of shutting down."
"Alan Alda talks with scientists studying the changing climate of Alaska and shows how global warming is affecting the the entire ecosystem of Alaska."@en