The Ozarks are some of the country’s most productive forests. They also sit in a warming “hole”, where temperature rise hasn’t yet taken hold.

Much of the modern understanding of climate has been shaped by pioneering studies done at Columbia University’s Lamont-Doherty Earth Observatory.

Using tree rings, a new drought atlas maps the reach and severity of dry and wet periods across Europe and the Mediterranean over the past 2,000 years.

A new study finds that global warming has measurably worsened the ongoing California drought and holds warnings for the future.

A new study of tree rings from Mongolia dating back more than 1,000 years confirms that recent warming in central Asia has no parallel in any known record.

During the second half of the 21st century, the U.S. Southwest and Great Plains will face drought worse than anything seen in times ancient or modern, a new study says.