Science Apr 10 As Polar Year Ends, Researchers Look for Climate Clues in Mountains of Data By PBS News Hour
Science Apr 01 Scientists Plot Pollutants’ Path at the Arctic The Arctic is a receptacle of the planet's air pollutants -- from forest fires to human-produced carbon dioxide emissions -- and a coordinated international effort is geared toward learning more about pollutants' effects at the top of the globe. By PBS News Hour