Scientists have produced a new curve of how atmospheric carbon dioxide affects climate. It makes clear that its effects can be long lasting.

Forty years after Mauri Pelto began studying the glaciers in northern Washington, much has changed about the glaciers, the project and the people involved.

A guide to notable research to be presented at the world’s largest gathering of earth and space scientists.

Botanist and climate scientist Dorothy Peteet has been in the business digging deep into bogs, marshes and fens for more than 40 years, revealing natural and human histories going back thousands of years, and their role in changing climate. A final frontier: the obscure remains of New York City’s once widespread coastal wetlands.

A new cataloging system will help better preserve, track and share thousands of tree ring samples from around the globe.

Drilling into sub-ice deposits left behind during times when the Earth was warmer than today should provide insights into how a massive ice sheet will react to human-induced climate change.

James Hansen warned the world in the 1980s that global warming was coming. Now, he is warning that it is barreling down even faster than expected.

Recently, scientists connected giant waves in the global jet stream to hot, dry spells gripping widely separated parts of the planet at the same time. Now they have done the same for winter weather.

NASA has designated a group at Lamont-Doherty Earth Observatory with preserving and making easily accessible data from all the extraterrestrial material curated by the agency.

The U.S. Southwest has suffered a historic drought over the past two decades. A new study elucidates the drivers, and says conditions will never return to those of the relatively wet 20th century.