There's a lot scientists don't know about how bike sharing programs encourage less driving.
New study says the State Department may have greatly underestimated Keystone XL's CO2 emissions.
For Canada, the tar sands' future hinges on the economic opportunity to bring oil reserves to market.
A new mapping tool shows how floods could drown some of the nation’s most critical power plants.
The cost of delayed action on climate change could spike if no action is taken, the White House says.
Find out what you missed in climate news this week in our 6 Degrees weekly roundup.
The climate costs of carbon emissions from any new fossil fuel project on public land will have to be calculated.
Though renewables have advanced since they were invented, it might surprise how long they've been around.
Summers get hotter, tornado season fizzles, cow manure worsens methane, plan to cut CO2 and more.
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.
Engineers warn more unpredictable weather will bring serious challenges to infrastructure.
The U.S. is amid a CO2-heavy crude oil boom mainly because of fracking in two states — Texas and North Dakota.
A Cornell University study says shale gas well defects lead to methane leaks in Pennsylvania.
The biggest CO2 emitter won’t need to make the biggest emissions cuts under the EPA's Clean Power Plan.
Findings put to rest claims that the world could not afford to act on climate change.
Generators from nuclear reactors & coal-fired power plants will feel the brunt of weather changes, report says.
The EPA is kicking off a four-month public comment period on the Clean Power Plan.
A Princeton University study finds that abandoned oil and gas wells could be a major source of methane emissions.