Improving water quality has more swimmers looking to take the plunge.

YouTube video by Omelas Podcast

Researchers at Columbia’s Lamont-Doherty Earth Observatory measured the air in and around New York City apartment buildings. What they found surprised them.

Letter: A financial model that could cut the cost of installing solar panels for many homeowners is welcomed by Alexis Abramson

Climate change is to blame, say government officials.

Global cooperation revealed a landslide, not a glacial collapse, likely initiated the cascade of events

Scientists have found that people are being exposed to more toxins than previously known.

Extreme weather — plus the Knicks parade — brought a jump in postponements.

The powerful earthquake that hit Colombia on Monday slammed the country because of its location near the "Ring of Fire" area. Eric Beaucé, a research scientist at Columbia Climate School, has more.

Four researchers born after 1997 describe how they stay motivated and cultivate resilience during difficult times.