Sulfate gases emitted by the Nabro volcano boosted stratospheric particles and gas across the entire Northern Hemisphere in 2011.

Colony of world's largest penguins may decline dramatically as Antarctic sea ice recedes this century, new study indicates.

A multisatellite observing system that was only a gleam in researchers’ eyes in the 1990s is now a key tool for monitoring Earth’s atmosphere. An ambitious follow-up project could yield up to ten times the data gathered by the current satellites.

With a series of papers over the last few years, NCAR's Aixue Hu has been slowly unraveling the story of the Bering Strait and its complex impact on our planet's climate.

The atmosphere has dealt Houston more than a few wild cards over the last few years, including two devastating tropical cyclones and unprecedented drought. While dealing with such weather threats, the nation's fourth largest city is also taking steps to tackle longer-term climate change.