20 May 2014, 06:23 PM ET
Climate change threatens hundreds of national parks and monuments around the country, according to a new report.
20 May 2014, 04:52 PM ET
Last month ranked as the world's hottest April on record, tying with April 2010, U.S. weather officials said. Last month was 1.39 degrees Fahrenheit (0.77 degrees Celsius) warmer than the 20th century average.
20 May 2014, 04:48 PM ET
Last month tied as the hottest April on record according to new NOAA data released Tuesday.
20 May 2014, 03:30 PM ET
The numbers of earthquakes recorded at various magnitudes.
20 May 2014, 02:50 PM ET
A team of scientists ventured to the depths of the Caribbean Sea on a three-month voyage to study fault zones and strange biological communities.
20 May 2014, 02:50 PM ET
The Caribbean usually conjures images of white sandy beaches and sparkling turquoise water, but beneath the sea's tranquil surface, powerful forces are at work.
20 May 2014, 01:03 PM ET
The flooding that has devastated Serbia, Bosnia and Herzegovina and Croatia is visible from orbit in new satellite imagery. Dozens have died and tens of thousands have been evacuated in these record-breaking floods.
20 May 2014, 12:59 PM ET
"Fairy circles" that form in the arid grasslands of Namibia have baffled scientists for decades. In the latest attempt to explain why these mysterious rings form, a group of researchers turned to aerial images.
20 May 2014, 08:13 AM ET
Record snowfalls in Japan outline the multiuse landscape of the country's second-largest island, Hokkaido. The cultivated greenbelts that helped protect against the 2011 tsunami are visible along the coast.
20 May 2014, 12:48 AM ET
The "Big One" may be many smaller ones.
19 May 2014, 06:09 PM ET
Storm chasers captured stunning footage of a supercell, or rotating thunderstorm, churning above northeastern Wyoming over the weekend.
19 May 2014, 05:45 PM ET
The Bay Area could face a cluster of deadly earthquakes that delivers a series of rapid knockout punches.
19 May 2014, 04:45 PM ET
Government, business and science are teaming up to fight one of the biggest threats to modern civilization. No, it's not terrorism or climate change - it's a fungus known as coffee rust that's attacking coffee crops worldwide.
19 May 2014, 03:00 PM ET
Ash kicked Greenland's annual summer melt into overdrive in summer 2012. Without the boost from forest fire ash, warm summer temperatures couldn't have melted Greenland's surface ice in 2012.
19 May 2014, 02:17 PM ET
The below sea-level canyons beneath the ocean-feeding glacier cut further inland than previously estimates. Accelerated ice loss of the glacier was thought to be limited, but this finding calls into question its duration.
19 May 2014, 12:25 PM ET
The May 20, 2013, tornado has the people of Moore working to restore what was demolished, and this time the city is rebuilding stronger.
19 May 2014, 12:15 PM ET
After several days of abnormally cool weather, warmer and more humid air will settle over the Midwest early this week and fuel thunderstorms.
19 May 2014, 11:59 AM ET
While the week will start with a high fire danger across the southern High Plains, days of welcome rainfall are on the horizon.
19 May 2014, 10:57 AM ET
In the winter of 1997-1998, severe weather events were recorded across the continental U.S.. For month leading in the winter, warm (El Niño) conditions persisted in the Pacific Ocean. NASA's Jason-2 satellite is monitoring in 2014.
18 May 2014, 01:00 PM ET
The decline of Greenland's glaciers could be more spectacular than predicted, because its valleys run longer and deeper than ever thought.
16 May 2014, 07:57 PM ET
The massive Wai'anae volcano that outlines half of Oahu is actually two volcanoes, not one. The discovery means Oahu once towered above the ocean with three volcanic peaks.
16 May 2014, 03:34 PM ET
California's wildfires have spawned a number of dramatic fire whirls, also known as fire devils, fire tornadoes or "firenadoes." What is a fire tornado, and how dangerous are they?
16 May 2014, 01:04 PM ET
"We are a coastal country," says National Climate Assessment's Coasts chapter's Susanne C. Moser, with 94,000 miles of coastline and more than $1 trillion in coastal infrastructure and all are increasingly vulnerable.
16 May 2014, 11:42 AM ET
Scientists found a lost shipping container nearly 4,200 feet (1,300 meters) below the surface of their ocean and turned their chance discovery into an opportunity to study how aquatic life reacts to deep-sea pollution.
16 May 2014, 08:42 AM ET
A satellite image of Namibia shows spring flooding on the Zambezi River. The flood waters appear black against the bright green of the vegetation.
16 May 2014, 07:23 AM ET
Antarctica is rising much faster than expected, revealing that the hot rock of the mantle hundreds of miles below the icy continent is flowing much faster than expected, and so rebounding quickly to the loss of glacial ice, researchers say.
15 May 2014, 08:23 PM ET
Coral reefs are an amazingly effective first line of defense for coastal communities.
15 May 2014, 03:33 PM ET
Smoke from wildfires raging in Southern California can be seen from space. NASA's Earth-watching Aqua satellite captured this image Wednesday (May 14) showing sandy-colored plumes stretching out over the Pacific Ocean from San Diego County.
15 May 2014, 02:47 PM ET
"The story in the Southwest is the story of water." says National Climate Assessment Southwest chapter's Gregg Garfin. Reduced agricultural yields, health impacts in cities due to heat, and flooding in coastal areas are additional concerns
15 May 2014, 02:00 PM ET
Big earthquakes in Chile and Japan reveal that migrating series of small earthquakes could signal coming events, providing a means of earthquake prediction.
15 May 2014, 10:47 AM ET
In a chance discovery, scientists found the first images of a dead whale shark and three dead rays on the bottom of the Atlantic Ocean. Though "fish falls" are common, it's very rare for scientists to find these sunken carcasses.
15 May 2014, 10:19 AM ET
More than 10,000 gallons of crude oil is gushing into the streets of a Los Angeles neighborhood, after a pipeline ruptured early this morning.