
The North Atlantic Oscillation is a key driver of winter weather patterns over the northern hemisphere. In recent years, research has claimed a correlation between the NAO and the 11-year solar cycle. A new paper debunks that claim.

The two alternative universes of red and blue America have far more in common than they seem to know. It is time to focus our attention beyond these differences and focus on the far greater areas of agreement.

As Trump enters his third year as president, the “war on science” isn’t slowing.

The Practicum in Innovative Sustainability Leadership, a course in the M.S. in Sustainability Management program, will host a record 16 leading sustainability practitioners this spring.

A new study shows that some of Yellowstone National Park’s forests may be at a climate tipping point, and could be replaced by grassland by the middle of this century.

The new initiative will explore the techniques that regular people use to de-escalate violence in their communities.

Researchers within the Earth Institute are working to decarbonize New York City’s heat and hot water.

Tying economic development to environmental protection is a winning political strategy.

The Education Committee of the Earth Institute faculty is seeking proposals for a new series of sustainability primers to be published by Columbia University Press. Proposals are due by March 4, 2019.