Each of the National Parks faces unique challenges from climate change, including increased heat.
A new study finds that the Canadian tar sands are a major source of secondary organic aerosols.
New research shows acidification caused by carbon dioxide kills and stunts baby Dungeness crabs.
The U.S. led the world in oil production last year for third year in a row, ahead of Saudi Arabia and Russia.
A slowdown in Atlantic currents that worsened blizzards, floods and hurricanes may have been natural.
Tropical regions are likely to suffer the biggest increase in hot days and extreme weather, scientists say.
Get the scoop on weather and climate on the Shum Show.
April 2016 was the hottest April on record globally.
Temperatures we think of as normal are getting warmer.
With the streak of record-warm months continuing, 2016 is looking likely to become the hottest year on record.
Falling carbon emissions from the electric power sector could help states meet their climate goals.
A powerful link has been found between the biodiversity of a reef and the size of the fisheries it supports.
Marshes are used to reduce flooding, and new research shows how they could flourish as seas rise.
Carbon dioxide levels are nearing their annual peak, and they may not dip below 400 ppm again.
Global report highlights threat to food security but also reveals the yearly discovery of 2,000 new species.
Forests that regrow after being cut play an unexpectedly valuable role in sequestering carbon emissions.
Climate change's combined effects of falling oxygen levels and rising acidity threaten ocean wildlife.
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.