Extreme weather dominates the top climate stories that happened this week and there's a quiz too.
In this week's Picture This, we've got an amazing aurora Vine, a typhoon's mean eye, and twin waterspouts.
The wildfires searing the Northwest Territories could be a harbinger of things to come in a warming world.
A new report shows just how costly climate- and weather-related disasters are across the globe.
Findings put to rest claims that the world could not afford to act on climate change.
The first five months of the year in Alaska have been unusually warm, particularly in far northern Barrow.
Energy Information Administration's online energy map shows infrastructure in path of extreme weather.
Few other places in the West exemplify the changes brought about by climate change more than the Navajo Nation.
A new report looks at the U.S. cultural heritage sites most threatened by rising seas, wildfires, and storms.
All of California is now in the highest stages of drought, while rains brought some relief to parts of Texas.
The third National Climate Assessments makes it clear climate change is happening now in the U.S.
The U.S. is likely to have warmer, drier winters in the West & unusually cold ones in the East & Southeast.
The entire state of California is now in drought. One chart shows its expansion since 2013.
A state-by-state analysis of U.S. temperature trends since the first Earth Day shows the warming trend.
Producers hope emotions of celebrities like Harrison Ford will connect with ordinary Americans.
The 2014 wildfire season could be catastrophic in California, but Colorado could be in for a reprieve.
The latest IPCC report says climate change impacts are already occurring and will worsen without adaptation.
From climate's tie to Genghis Khan to a view of storm winds from the top of the world, see the latest.
New GAO report exposes myriad climate change threats to U.S. energy infrastructure.
U.N. climate chief says flooding & heat waves have raised the issue of climate change to the highest level.