The two states are leading the U.S. with ambitious new standards governing their electricity supplies.
The U.S., Brazil and China all stepped up their climate commitments in a flurry of activity.
The court ruled that the EPA did not properly account for the financial impact on power plants and consumers.
European Union ministers are seeking an ambitious, durable and legally binding deal to curb global warming.
New reports suggest taking action on climate change would also have considerable public health benefits.
U.K.’s energy secretary and lead negotiator says financial package for developing countries absolutely essential for global agreement on car…
Pope Francis' climate change encyclical has been released. Here are 4 main points from it.
Developers and government officials are optimistic offshore wind farms could spread along U.S. coastlines.
Pope Francis's much-anticipated climate change encyclical was leaked early by an Italian paper.
UK leads European solar energy expansion to help renewables overtake output of nuclear power.
The latest round of U.N. climate talks in Bonn, Germany, helped build trust among countries.
The U.S. EPA took its first steps Wednesday toward regulating greenhouse gas emissions from commercial airplanes.
Leading climate scientists say the G7's decarbonization goal may be too little, too late.
The G7 leaders have committed to decarbonizing the world's economy by 2100 but with a few caveats.
Four things to know about how the Clean Power Plan will change how you get electricity.
Global warming from burning fossil fuels can be felt within just a few months says new study.
Paris climate talks are six months away. There's a lot of goodwill but also a lot of hurdles for a good deal.
In a stunning reversal of years after years of obstructionism, oil companies are asking for a price on carbon.
A new report says the U.S. can just make its climate goal, but more needs to be done.
A drought-amped wildfire season will severely test the West's ability to live with an ancient threat.