Greenhouse Gas Emissions Remain the Primary Threat to Polar Bears

By on    Featured, The Arctic and Alaska Science  

Greenhouse Gas Emissions Remain the Primary Threat to Polar Bears

ANCHORAGE, Alaska — Greenhouse gas emissions remain the primary threat to the preservation of polar bear populations worldwide. This conclusion holds true under both a reduced greenhouse gas emission scenario that stabilizes climate warming and another scenario where emissions and warming continue at the current pace, according to updated U.S. Geological Survey research models.   Under both […]

Greenland ice cores show industrial record of acid rain, success of U.S. Clean Air Act

By on    Science/Education  

The rise and fall of acid rain is a global experiment whose results are preserved in the geologic record. By analyzing samples from the Greenland ice sheet, University of Washington atmospheric scientists found clear evidence of the U.S. Clean Air Act. They also discovered a link between air acidity and how nitrogen is preserved in […]

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