A progressive culture and Silicon Valley-style innovation turned California into a climate leader.
New research suggests American biofuels are doing more harm to the climate than good.
In a welcome break, a new annual heat record is unlikely in 2017 since the effect of El Niño is fading.
Wood energy can help industries manage waste, but it's not as climate friendly as Congress claims.
California's cap-and-trade program is in legal doubt, but state officials are publicly ignoring the problem.
The Earth is so hot this year that a limit for global warming agreed by world leaders is in danger of being breached.
Europeans are working to close a loophole in their climate rules that promotes harmful wood energy.
Scientists say it is increasingly urgent to develop negative emissions technology to meet climate goals.
The number of cities reporting on their efforts to tackle global warming has skyrocketed.
Scientists are developing an artificial leaf that can turn carbon dioxide emissions into fuel.
Economists say an achievement by the world’s biggest polluter may be a significant milestone, rather than a blip.
Scientists are calling for the Obama administration to ban coal development on federal public lands.
The EPA has declared jet engine exhaust a contributor to climate change that endangers public health.
It takes less energy to keep the world’s businesses and industry humming today than in the past.
June 2016 was the 14th consecutive month of record heat for the globe.
A study finds that the U.S. and four other developed countries are spending billions to keep forests intact.
A new report shows electric power utilities are reducing carbon pollution that fuels climate change.
Rising extreme heat and humidity in the U.S. cities threaten public health.
Removing carbon from the atmosphere may be necessary to keep global warming from exceeding 2°C.
The Supreme Court's stay of the Clean Power Plan made carbon prices in the Northeast tumble.