The recent trend of increasing Antarctic sea ice extent — seemingly at odds with climate model projections — can largely be explained by a natural climate fluctuation.

A new study finds that, even if all the countries follow through on their Paris Agreement commitments, steeper emissions cuts would be necessary after 2030 to stay below 2 degrees of warming.

A new open-access book demystifies climate modeling without using a single equation.

Melting ice sheets and glaciers are slightly slowing Earth's rotation.

In 50 years, summers across most of the globe could regularly be hotter than any summer experienced so far by people alive today. Reducing carbon emissions could cut the risk.