Record lows were set across the eastern U.S. on July 30 as another bout of cool air from Canada invaded.
The cost of delayed action on climate change could spike if no action is taken, the White House says.
A tornado touches down north of Boston as another blast of colder-than-normal air invades the eastern U.S.
Scientists say they have found a way to feed billions of people, while reducing environmental stresses.
Check out one lucky photo of a lightning strike, along with an apocalyptic-looking swarm of insects on radar.
“Hot days” are likely to happen much more often if we continue to pump CO2 into the atmosphere.
The obsessive attention to the state of the latest El Niño comes from the major global impacts it can have.
Oceans were the hottest they've been on record this June, leading to a month of record heat across the world.
Extreme weather dominates the top climate stories that happened this week and there's a quiz too.
As Arctic ice, and access to seals living there, disappears, polar bears adapt to a land-based diet.
In this week's Picture This, we've got an amazing aurora Vine, a typhoon's mean eye, and twin waterspouts.
Rammasun looked ragged after its trip over the Philippines, but became a Super Typhoon before hitting China.
A new report -- the latest checkup on the health of the global climate system -- says the planet is running a temperature.
The wildfires searing the Northwest Territories could be a harbinger of things to come in a warming world.
Record lows are outpacing record highs since last year. This is becoming rarer in a warming world.
A new report shows just how costly climate- and weather-related disasters are across the globe.
January-June 2014 was the warmest first half to a year in California, helping fuel the state's drought.
Groundwater has helped farmers trying to survive the California drought, but losses are still heavy.
At the hottest point of the summer, a collision of air masses has sent cooler temps invading the eastern U.S.
The military is already looking at its climate change vulnerabilities but more needs to be done.