U.S. energy consumption, greenhouse gases and the economy are no longer growing together.
The U.S. is poised to take over the Arctic Council as major changes loom for the region.
Cheap oil and increasingly cheap renewables are ushering in an era of abundant energy.
New York State is creating a smart grid research lab to help integrate renewables into the electric power grid.
If CO2 emissions continue at the current pace, pollen counts are projected to nearly double by 2060.
For the third year, the U.S. produced more crude oil and natural gas than any other country in the world in 2014.
It won't have a big climate impact, but climate scientists cutting back on air travel could have huge symbolic value.
As investments in wind and solar climb, backing major hydropower projects may be risky in a warming world.
Global renewables investments increased 17 percent in 2014 as solar and wind costs fell dramatically.
No matter the fate of Keystone XL, many other pipelines could transport Canadian tar sands oil to refineries.
Warm Pacific temperatures affect everything from sea lions to plankton and are a sign of things to come.
Scientists have mixed opinions about whether stagnant global energy-related CO2 emissions are a trend.
U.S. biodiesel and "green" diesel imports declined in 2014 after setting records in 2013.
Climate change is slated to play a more prominent role in international disaster talks than ever before.
Cities may be ideal for major solar power development, though they're often overlooked, a new study says.
National forests, parks and other public lands play a major role in America's defense against climate change.
Four European Union countries have already surpassed their 2020 clean energy goals.
Caltech scientists think they have made another step toward creating energy from artificial photosynthesis.
Drought in southeast Brazil take its toll on Sao Paulo's largest reservoir system for the third straight year.
Climate change upped the odds of drought in Syria that directly preceded civil unrest and the rise of ISIS.