A new study shows air pollution from Canada's oil sands could be 4 times higher than previously reported.
The world's marquee carbon dioxide observatory just recorded a major climate milestone.
Removing carbon dioxide from the air may be the most effective way to meet the globe's ambitious climate goals.
A new poster series takes iconic landscapes and imagines what they’ll look like in 2050 with climate change.
Major oil companies, feeling pressure from low oil prices and global climate policy, are fleeing Canada's oil sands.
U.S. energy-related carbon pollution fell in 2016, part of a decade-long trend as utilities use less coal.
Some big American coal companies want President Trump to keep the U.S. in the Paris climate pact.
Coal use in the U.S. fell 9 percent in 2016, even as the Trump administration seeks a coal industry revival.
Dozens of GOP-sponsored bills have been introduced in Congress that seek to hamstring federal climate action.
Communities looking to reduce fossil fuel use find opportunity in energy-hogging treatment plants.
President Trump's executive order on energy calls for the removal of "burdens" to domestic energy use.
President Trump signed an executive order Tuesday aiming to overturn federal climate policies.
The contentious Keystone XL pipeline is now one step closer to being built, but its saga is far from over.
The White House’s proposed budget forcefully kicks many federal climate-related energy programs to the curb.
The Energy Star program is as much a climate program as it is an energy savings program.
The EPA has withdrawn a request for methane emissions data from the oil and gas industry.
Congress could use a rarely-invoked law to permanently kill an Obama-era methane emissions regulation.
For the first time in North America, wind powered more than 50 percent of electric demand on Feb. 12.
Greenhouse gas emissions fell in 2015, reducing America’s overall climate pollution to below 1994 levels.
Europe will vastly overshoot its carbon emissions target unless it closes all 300 coal-fired power stations by 2030.