To figure out what really works when nations try to fight climate change, researchers looked at 1,500 ways countries have tried to curb heat-trapping gases.

An abrupt shutdown of Atlantic Ocean currents that could put large parts of Europe in a deep freeze is looking a bit more likely.

Satellites burning in our atmosphere leave metal particles in the stratosphere, and scientists don't know if these could affect our climate.

Germany's rapid expansion of solar energy has created an unexpected problem: an oversupply of renewable energy, which has led to a significant drop in profitability for solar producers.

Installing a heat pump now is better for the climate, even if you run it on U.S. electricity generated mostly by fossil fuels. Here's why.