Carbon emissions from transportation are becoming America's largest source of climate pollution.
China can tap just 10 percent of its wind resources to supply a quarter of its power by 2030.
Nearly 400 scientists are asking President Obama to halt oil and gas leasing in the Arctic Ocean.
Carbon dioxide passed a notable symbolic threshold in Antarctic for the first time in 4 million years.
Through a vast ecological analysis, scientists found reef fisheries that were healthier than expected.
As the energy sector starts to clean itself up, greenhouse gases released by farming continue to rise.
Global warming and the whims of the weather mean California remains in drought despite the El Niño.
Carbon dioxide could play a significant role in the climate impacts of thawing permafrost.
Wildfires have forced a drastic cut to oil sands production in Canada, exposing a growing climate risk.
For the first time, carbon dioxide emissions from an electric power plant have been solidified.
Overfishing, sewage and farm pollution pose a threat to reefs around the world.
Arctic sea ice shrank to its fourth-lowest level in 50 years last month, setting a new record low for May.
Scientists say there's a problem with the way they account for methane's effect on the climate.
Climate change could boost the carbon sequestration potential of Alaska's temperate forests.
The easing of California's drought has boosted the state's ability to produce hydropower.
Happy Birthday from the Shum Show to the National Park Service!
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.