[ Back to EurekAlert! ]

Contact: Vince Stricherz
University of Washington

Ice core data

Caption: Ice core data show concentrations of nitrate (top line), hydrogen ions (middle line) and nitrogen-15 (bottom line) from 1772 through 2006.

Credit: Lei Geng/University of Washington

Usage Restrictions: News use only

Related news release: Greenland ice sheet carries evidence of increased atmospheric acidity

[ Back to EurekAlert! ]