The government want more farmers turning waste methane into biogas. Here's how California is helping.
Here are four reasons to be hopeful on Earth Day when it comes to climate change.
On Earth Day, take a look at the key trends that underpin global warming.
India and China recently dropped their opposition to phasing out HFCs under the Montreal Protocol.
Greenhouse gases are trapping a lot of heat in the climate system and most is ending up in the ocean.
China could produce more than 85 percent of its electricity with renewables by 2050.
So far, 2015 has been the warmest year on record, going back more than 100 years.
Total U.S. GHG emissions released into the atmosphere because of human activity increased 2 percent in 2013
Analysts are unsure whether cheap rooftop solar will inspire businesses and homes to "defect" from the power grid.
As temperatures rise, droughts will worsen across the American West. Here's how to adapt.
Climate scientists and planners speak different languages, jeopardizing adaptation efforts.
Greenhouse gas emissions fell 8 percent, while renewable energy rose to a record high.
New York State is creating a smart grid research lab to help integrate renewables into the electric power grid.
For the third year, the U.S. produced more crude oil and natural gas than any other country in the world in 2014.
Should flood insurance subsidies be reformed to help communities abandon coastal settlements?
It won't have a big climate impact, but climate scientists cutting back on air travel could have huge symbolic value.
Dense, older cities are seeing their per-capita vehicle CO2 emissions fall faster than other U.S. cities.
The federal government plans to train 75,000 solar workers by 2020, and many will be veterans.
As investments in wind and solar climb, backing major hydropower projects may be risky in a warming world.
Atlantic circulation changes are being linked to harsh winters, changes in sea levels and hurricanes.