High school students teamed up with Columbia University researchers to learn about local exposure to this toxic element. Along the way, they learned about history, field work, and the scientific process.

From 2030 to 2050, climate change impacts may cause 250,000 more deaths globally each year. Here’s why.

There’s a lot we don’t know about respiratory viruses and how they spread. A study currently underway seeks to unravel these mysteries, in part by studying people who are healthy enough to be walking around in Manhattan.

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.

On every continent and every ocean, Earth Institute researchers are studying climate, geology, natural hazards, ecology and more. Here is a list of projects in rough chronological order.

Public health researchers run the numbers on creating a park on top of a section of the highway, finding it a worthwhile investment for community health.

Many countries are making progress on improving water sanitation and protecting marine ecosystems. But air pollution continues as a leading health problem in many nations, and fisheries are deteriorating almost everywhere.

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.

Researcher calls attention to a largely under-recognized health threat.

Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. But it not directly measurable from space, due to the abundance of ozone higher in the atmosphere, which masks the surface. Now, researchers have devised a way to use satellite measurements of the precursor gases that contribute to ozone formation to predict when and where ozone will form.