Nov 19th, 2008 · The woolly mammoth is the first extinct mammal to have its DNA sequence deciphered. Scientists used hair that was found frozen in the Siberian permafrost, some for tens of thousands of years.
Sep 10th, 2007 · Growing emissions of methane, a powerful greenhouse gas, could make projections for global warming far worse than estimated. Katey Walter, 31, is one of the first scientists to measure methane released from thawing permafrost in Alaska and Siberia.
Aug 27th, 2007 · In Switzerland, one town saw global warming coming and built a dam to stop it. The Swiss resort of Pontresina, near the Italian border, is 5,900 feet above sea level, which is on the high end -- even in Switzerland. But higher still, right above the town, is a mass of warming permafrost.
Jul 23rd, 2007 · Shifting ice flows, melting permafrost, buckling roads and an increase in insects are signs of climate change in the region of Barrow, Alaska -- the northernmost settlement in the United States.
Jun 8th, 2007 · From melting permafrost, to dwindling sea ice, to shrinking glaciers, changes in the Alaskan environment are happening faster than was predicted. Scientists discuss what is taking place in Alaska and the Arctic, and how it is linked to climate change.
Jan 5th, 2007 · We talk with a scientist en route to the South Pole who is hoping to collect data about Earth's climate history. Also, a paleontologist talks about a 70-million-year-old baby plesiosaur out of Antarctica's permafrost. And we hear about a new telescope being built more than a mile below the surface of the ice.
Sep 18th, 2006 · Environmental experts in Russia say global warming is melting the permafrost and forming new lakes in Siberia's vast frozen tundra. Previously frozen methane gas is being released into the atmosphere, potentially compounding the problem.
Nov 8th, 2004 · A new study finds global warming is particularly intense in the Arctic. The melting of glaciers, thinning sea ice and changes in permafrost not only have acute impacts on Arctic residents who depend on hunting and fishing for survival, but also have global consequences. NPR's Elizabeth Arnold reports.