A new study finds that the Canadian tar sands are a major source of secondary organic aerosols.
The U.S. led the world in oil production last year for third year in a row, ahead of Saudi Arabia and Russia.
Tropical regions are likely to suffer the biggest increase in hot days and extreme weather, scientists say.
April 2016 was the hottest April on record globally.
Falling carbon emissions from the electric power sector could help states meet their climate goals.
Forests that regrow after being cut play an unexpectedly valuable role in sequestering carbon emissions.
The EPA announced new methane emissions regulations for oil and gas operations on Thursday.
Fossil fuels will still be the dominate energy source on the planet in 2040, a U.S. government forecast shows.
Two researchers say taking smaller steps could be the best way to achieve international climate cooperation.
No carbon emissions targets have been set for international shipping... yet.
A U.N. panel said that governments should study the worst-case global warming scenarios.
More natural gas is coming from fracking than ever before, and much of it is being used for electricity.
Hurricanes supercharge forests' ability to store carbon, Duke University researchers have found.
Phasing out coal, oil and gas leasing could help the U.S. meet its Paris climate goals, a new study says.
NOAA scientists have found more gas flares in the United States than anywhere else in the world.
The strong El Niño in the tropical Pacific contributed to lower energy demand in the U.S. this winter.
A carbon tax ballot measure in Washington state is dividing the region's environmental groups.
If the first three months of 2016 are any indication, meeting the 1.5°C challenge will be increasingly difficult.
Developing a system under which climate pledges are reviewed and improved is 'essential' for success.
The outcome of the U.S. presidential election will be critical to the success of the Paris climate pact.