Fires in the Amazon rainforest show up clearly and ominously in satellite imagery, showing the increased deforestation trends that are putting the planet's carbon savings account and bastion of biodiversity at risk.
The humidity has increased 5 to 10 percent just since 1970, turning hot summer days even more unbearable.
The storm displayed ominous clouds, lightning, a rainbow and, in its wake, a large display of mammatus clouds at sunset.
Amazon wildfires have spiked, sparking fears of land grabs for agriculture and the release of greenhouse gases that will accelerate global warming.
This summer, Alaska has faced extreme heat, irregular rains and wildfires.
Scientists hope this machine-learning technology could unlock the secrets behind large hail formation.
The weekend is comfortably dry.
Thursday should present our last 90-degree day for a while.
It's the third-highest total on record to date, and already two weeks past the average number of 90-degree days for a full year.
A destructive storm propelled baseball-sized hail at 70 mph as it ravaged a Montana wildlife management area.
In just 15 minutes, a small mass of clouds quadrupled in size, shot 40,000 feet high and morphed into a raging thunderstorm.
Not quite as hot over the next few days, but the chances for daily showers and thunderstorms remain elevated through Friday.
Storms tomorrow should be less numerous than today.
"We stood up and saw the mattresses coming at us," Robb Manes told The Washington Post.
July is actually D.C.'s hottest month. Here's why.
A swiftly moving wildfire sent flames shooting 160 feet into the air on Gran Canaria island, sending people fleeing for safer ground.
Punishing heat and humidity only slowly improve in the coming days thanks to more clouds and storm chances before a late-week cool front and a potentially fantastic weekend.
It’s a few degrees cooler on Tuesday but still abnormally hot and humid.
The U.S. doesn't own Greenland (yet), but it already holds the key to our long-term fate.
With rain falling so heavily it was difficult to breathe, nearly three feet of water accumulated in just eight hours.
A new study finds that climate change could have hugely negative economic consequences for nearly all countries, unless greenhouse gas emissions are quickly and significantly curtailed.