Snow and ice influence the climate and chemistry of the polar atmosphere. Field experiments in Alaska point to the significance of surface snow for polar ozone depletion events. The connection between ...

NSF Postdoctoral Fellow in Polar Regions Research Kerri Pratt conducts a snow chamber experiment at minus 44 degree wind chill near Barrow, Alaska. (Purdue University photo/courtesy of Paul Shepson) ...

National Science Foundation-funded researchers at Purdue University have discovered that sunlit snow is the major source of atmospheric bromine in the Arctic, the key to unique chemical reactions that ...

Researchers have discovered that sunlit snow is the major source of atmospheric bromine in the Arctic, the key to unique chemical reactions that purge pollutants and destroy ozone. National Science ...