How much does it actually matter if you take public transit instead of driving? Here’s an easy way to find out.

In Ethiopia, climate variability can have a big impact on food, water, and health. A system to monitor and predict climate will help to keep people safe.

An advisory committee disbanded by the federal government reunites at Columbia University to begin crafting recommendations for states, cities, and businesses to plan for climate change.

The project will focus on climate threats to food and nutrition in six developing countries, bringing research out of the lab and into the real world.

A new report is the first to focus on longer-term climate impacts on crop and water resources, and the ways in which they may influence internal migration.

The Silencing Science Tracker, from Columbia’s Sabin Center for Climate Change Law and the Climate Science Legal Defense Fund, will log actions by the U.S. government to silence scientists working on environmental, public health and climate issues.

Columbia University, New York State, and others will host the former Federal Advisory Committee for the National Climate Assessment.

Every four years Congress is provided with a state-of-the-art report on the impacts of climate change on the United States. The next National Climate Assessment is scheduled for 2018, but its scientific findings are scheduled to be published today. Here, two of its authors explain what to expect.

In October 2012, Sandy devastated large swaths of the city with floods and fire. How well have we recovered? And will we be ready for the next big storm?

If a serious cyclone were to strike Mumbai, the results could be catastrophic, says a study underway at Columbia.