Research shows the Clean Air Act was likely responsible for a dramatic decline in atmospheric organic aerosol.

Study finds state’s annual risk of extreme rainfall will rise from 1 to 18 percent.

Susan Solomon's John H. Carlson Lecture examines past environmental challenges in the context of today's fight against climate change.

Atmospheric chemist takes on pollutants and the global treaties written to control them.

Climate scientist describes physics behind expected increase in storm strength due to climate change.

By 2100, oceans may hold enough carbon to launch mass extermination of species in future millennia.

Colorado forest study provides clearest-ever picture of gases released into the atmosphere and how they change.

MIT alumna is establishing a new research group aimed at harnessing space engineering to improve life on Earth.

Estimate will help gauge hang time of greenhouse gases, water vapor, and ozone in upper atmosphere.