Polar bears fight climate change and increase in man-made pollutants
January 16, 2010, 11:56 a.m. by Jeffrey Davis
More man-made toxins, such as mercury and chemical coolants, are reaching the Arctic and are increasing in the polar bear's food sources.
As permafrost melts, prehistoric ooze could speed up global warming
July 7, 2009, 5:13 p.m. by S.A. Rogers
Scientists warn that if exposed, microbes in organic matter could emit mass quantities of greenhouse gases into the air.
Arctic people hit with pollution from half a world away
June 10, 2009, 5:10 p.m. by S.A. Rogers
Pollution is blown in the wind from the point of origin to the Arctic, falling in the form of rain and snow.