UW News

Becky Alexander


May 17, 2017

Earth’s atmosphere more chemically reactive in cold climates

researcher in lab

A study of a Greenland ice core shows that during large climate swings, chemically reactive oxidants shift in a different direction than expected, which means we need to rethink what controls these molecules in our air.


April 11, 2014

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

person with ice core

Detailed ice core measurements show smog-related ratios leveling off in 1970, and suggests these deposits are sensitive to the same chemicals that cause acid rain.