Climate Change

DiCaprio is more than just a hard-partying Oscar winner -- he's one of the most committed environmental activists in Hollywood.

The drought in the Levant region from 1998 to 2012 was the most severe in at least 900 years.

"Change air pollution before it changes you."

The next few weeks are critical as the Great Barrier Reef, along with reefs around the world, faces what authorities have called the longest-ever coral bleaching event on record.

The center of Tokyo now looks more like a sea of yellow than a major metropolis.

New research suggests that the global community may need to do more to make sure its most vulnerable populations are being protected.

They were in search of food.

When your cause is the future of humanity, sometimes muscle cramps and sore feet cease to matter so much.

Thanks to record-breaking rains last year, one of Earth's hottest and driest spots is now awash in sea of yellow wildflowers.

The "sea butterfly" is a zooplankton snail that behaves more like an insect, and its movement may pave the way for a fleet tiny underwater robots.

Human-caused global warming has led to a huge spike in coastal flooding events in the U.S., which may get much worse as the climate warms.

Tropical Cyclone Winston slammed into Fiji as the strongest such storm ever observed in the southern hemisphere, and one of the strongest in the world.

Extremely intense Tropical Cyclone Winston is on course to make a direct hit on Fiji's capital this weekend.

One of the leading figures who helped craft the landmark Paris Agreement on climate change is stepping down from her post.

The Obama administration is paying to relocate a native tribe whose land is sinking beneath the rising seas of the Gulf of Mexico.

The record El Niño has not bailed California out of its drought woes. If the state doesn't get hit by several storms soon, the situation will grow more dire.

January of 2016 saw the largest temperature anomaly Earth has recorded since at least the late 19th century, NASA found.

Supreme Court Justice Antonin Scalia's death makes it more likely that President Obama's global warming plan will be upheld.

One of the coldest air masses in years is going to hit the Ohio Valley, Mid-Atlantic and Northeast on Valentine's Day.

Nearly 3,000 climate scientists from around the world denounced Australia's plan to slash climate research at the nation's top science agency.

The surprising move to put the plan on hold is a big win for conservatives.

The first-ever carbon emissions standards for aviation were rolled out on Monday, but they are being criticized as weak.

Decisions made in the next couple of decades about reducing greenhouse gas emissions will determine the severity of global warming -- including potentially catastrophic sea level rise -- for the next 10,000 years, per a new study.

A severe cold snap is set to overtake the eastern U.S. for Valentine's Day weekend.

“For the Arctic, this is definitely the strangest winter I’ve ever seen."