States are suing to stop the Clean Power Plan even as they're preparing for the plan to take effect.
The WMO's annual greenhouse gas emissions report shows that they hit record levels in 2013.
The world's biggest greenhouse gas emitter might be getting serious about kicking its coal habit.
Open-air trash burning is polluting the air and contributing more CO2 emissions than scientists realized.
As temperatures rise in Europe, researchers warn of the increased risk of mosquito-borne diseases.
In a world with ever more competition for food, pests may pose the biggest threat.
A new study says a federal cap-and-trade policy could pay for itself 10 times over with health benefits.
A new study shows that climate change is increasing the odds of long-term drought in the Southwest.
Coal plants are committing the Earth to billions of tons of CO2 emissions in the coming decades.
Bird deaths have stoked legal action that could challenge half a dozen solar plants planned in Calif. and Ariz.
Excess heat is being stored deep in the Atlantic and Southern oceans – not Pacific as previously thought.
Oregon coal terminal permit denial points to uncertainty about how coal exports greenhouse gas emissions.
There's a lot scientists don't know about how bike sharing programs encourage less driving.
A new study says growing acidification off Alaska’s waters threatens the state’s whole economy.
New research shows that forest ecosystems are particularly vulnerable to rapid changes in the climate.
NASA's newest satellite sent back it first data and it looks like all systems are running smoothly.
A roundup of coverage on the most extensive and intense drought to hit the U.S. since at least 1956.
New study says the State Department may have greatly underestimated Keystone XL's CO2 emissions.
Researchers say the demand for flights needs to drop to counteract the effects of growing carbon emissions.
For Canada, the tar sands' future hinges on the economic opportunity to bring oil reserves to market.