Why did Europe’s “cursed” glaciers begin retreating in the 1850’s even though the climate record suggests they should have advanced for another 50 years?

Researchers survey the damage to Puerto Rico’s forests in the aftermath of Hurricane Maria.

If emissions of greenhouse gases remain high, as many as 143 million “internal migrants” might move within their own countries by 2050.

In a new study, researchers have mapped out a large variety of discarded pharmaceuticals dissolved throughout the Hudson River. They say that in some places, levels may be high enough to potentially affect aquatic life.

Taught by New York Times contributor and Columbia professor Claudia Dreifus, the March 3 workshop is open to Earth Institute students, faculty, and alumni.

You could say goodbye to the atmosphere and GPS navigation, to start.

Working as an Antarctic field scientist, I witnessed the destruction provoked by a rapidly warming planet. But I also found inspiration.

Rainfall changes caused by global warming will increase river flooding risks across the globe by the 2040s, says a new study.

A new study projects that in coming decades the effects of high humidity in many areas may surpass humans’ ability to work or, in some cases, even survive.

Columbia University President Lee C. Bollinger today announced his appointment of Alexander N. Halliday, a geochemistry professor at University of Oxford and vice president of the UK’s Royal Society, as the new Director of Columbia’s Earth Institute.