In a remote region around Kenya’s Lake Turkana, Columbia's Kevin Uno collects fossils and sediments, searching for evidence about past climate, vegetation, animals, and water. His goal: to understand how climate affected our ancestors millions of years ago.

Puerto Rico suffered an estimated $94 billion or more in damage, on top of an already sagging economy and $74 billion in debt. The island needs a total reboot. Can it do it sustainably?

A research scientist at Columbia University's International Research Institute for Climate and Society, Dinku is on a mission to integrate Africa's sparse weather-station data with comprehensive satellite measurements beamed from space.

Some towns and cities can get soaked even when the skies are dry. Columbia climate researchers say these so-called sunny day floods are on the rise thanks to climate change.

Forecasters are expecting another La Niña winter for the 2017-2018 season. The phenomenon can cause major changes in climate patterns that can influence water availability, food production, human health, and extreme weather events around the globe.