Atmospheric scientists discover surprising levels and unexpected types of pollution that seem to be originating in Africa.

A new study shows that fecal bacteria from sewage can persist in far greater quantities in near-shore sediments than in the water of the Hudson River.

A 19-year drought in the American West is one of the most severe in the past 1200 years—and climate change is partially to blame, according to new research.

But there’s a pretty simple solution that could protect a lot of people.

Yutian Wu received funding from the Center for Climate and Life to investigate whether the loss of Arctic sea ice promotes severe weather over North America.

The American Geophysical Union fall meeting takes place Dec. 10-14 in Washington, D.C. Here is a guide to key talks and other events from Columbia’s Earth Institute.

The Intergovernmental Panel on Climate Change says that limiting global warming to 1.5˚C will require removing CO2 from the atmosphere. How feasible is this?

A concerted, multidisciplinary effort is needed to tackle this complexity, scientists argue in a paper released on Monday.

A Q&A with Jason Smerdon, coauthor of the newly revised Climate Change: The Science of Global Warming and Our Energy Future.

A guide to wildfire experts at the Earth Institute.