The U.S. scored 13th in global energy efficiency ranking, or near the bottom of the world's 16 largest economies.
Renewables revolution over the next decade may exist in how power is managed, not in new technology.
A new China-U.S. agreement looks like giving much-needed stimulus to development of the technology.
A new report -- the latest checkup on the health of the global climate system -- says the planet is running a temperature.
Groundwater has helped farmers trying to survive the California drought, but losses are still heavy.
Summers get hotter, tornado season fizzles, cow manure worsens methane, plan to cut CO2 and more.
Discovery can give scientists new tools to engineer crops to deal with droughts and high temps.
Methane emissions from cows and pigs had a surprisingly large impact on climate change.
Fossil fuels are shifting away from national forests and other public lands because of coincidence of geology.
There are pathways to reduce CO2 emissions and meet a key climate target but time is running out.
Major report warns that loss of grazing fish due to pollution and overfishing is a key driver of region’s coral decline.
Indonesia lost nearly twice as much forest in 2010 as Brazil, despite only being a quarter of the size.
All in a week's work. Top climate stories from EPA's new landfill rules to launch of NASA's new CO2-monitoring tool.
The U.S. is amid a CO2-heavy crude oil boom mainly because of fracking in two states — Texas and North Dakota.
The EPA is proposing to reduce climate change-driving methane emissions at landfills and oil wells.
A Cornell University study says shale gas well defects lead to methane leaks in Pennsylvania.
The Orbiting Carbon Observatory-2 will measure CO2 in Earth's atmosphere and help find sources and sinks.
The biggest CO2 emitter won’t need to make the biggest emissions cuts under the EPA's Clean Power Plan.
CO2 concentrations in the atmosphere have been above 400 ppm for three months in a row for the first time.
In the recent weeks, Britain and Germany have broken records for generating solar electricity.