04 November 2013, 10:01 AM ET
When carbon dioxide is absorbed by the ocean, the water's acid level rises. If this level gets too high, some sea creatures that build protective shells can't grow as fast or even have their shells dissolve, threatening the entire food chain.
01 November 2013, 06:04 PM ET
Mount Elbrus is in the Caucasus Range, the mountains that separate Europe and Asia.
01 November 2013, 05:18 PM ET
Ancient Antarctic forests were like nothing seen on Earth today, new research reveals. The polar trees had features of today's tropical trees and may have been mixed evergreen and deciduous.
01 November 2013, 03:36 PM ET
No water has flowed across Antarctica's Friis Hills for 14 million years. But when Earth's climate was warmer, fossils show, tundra mosses and a lake covered the flat-topped hills.
01 November 2013, 12:39 PM ET
The mid-September floods in northern Colorado sent mud, rocks and debris flowing down mountain slopes and hillsides over an unprecedented area. Rockslides are still a danger in the aftermath of the flood.
01 November 2013, 12:04 PM ET
In the aftermath of September flash floods in Colorado, landslides mar the Rocky Mountains all the way down to the foothills. Geologists warn that rockfalls will be more common for years.
01 November 2013, 11:07 AM ET
Carbon dioxide emissions hit a record high in 2012, but could have been even higher, according to a new report. The increase in emissions was only 1.1 percent in 2012, compared to an average 2.9 percent over the past decade.
01 November 2013, 10:44 AM ET
A newly discovered species of leaf beetle uses its own feces to modify shelters in leaves.
31 October 2013, 11:51 PM ET
By protecting nature, New York can protect itself.
31 October 2013, 04:20 PM ET
Hurricane Sandy's powerful storm tide flooded 70 percent of New Jersey's historic submerged marshes. Now, geologists are plumbing for past storm records.
31 October 2013, 04:16 PM ET
For Halloween, we have compiled the United State's scariest weather by state, including highlights of some of the most extreme weather events in history.
31 October 2013, 01:21 PM ET
Beach nourishment works, according to a detailed survey of New Jersey homes damaged by Hurricane Sandy. But protecting private property by replenishing storm-damaged beaches may be tilting at windmills.
31 October 2013, 10:30 AM ET
Images of zoo animals and their Halloween treats.
31 October 2013, 09:57 AM ET
When Maine's supervolcanoes erupted some 420 million years ago, the blasts were among the biggest ever on Earth.
31 October 2013, 09:33 AM ET
A strong earthquake of preliminary magnitude 6.3 struck Taiwan today, according to the U.S. Geological Survey (USGS).
31 October 2013, 09:18 AM ET
An extreme of winter on Earth is Antarctica, where the handful of research bases are places of solitude and waiting. The Franco–Italian Concordia outpost, seen here in this cool space wallpaper, is one of these.
30 October 2013, 02:42 PM ET
Air pollution in northern China recently reached astonishing lows, with visibility of about 30 feet. The clouds of smoke and smog have been tracked from above by NASA's Aqua satellite.
30 October 2013, 02:27 PM ET
A 9,000-year-old painting of an exploding volcano, the oldest ever found, can now be linked to real-life eruption in Turkey.
30 October 2013, 01:14 PM ET
Guinea, a country in western Africa, is using a system that tracks lightning to monitor storms. The project is much cheaper than using Doppler radar, the conventional method.
30 October 2013, 10:01 AM ET
Scientists discovered three new species during an expedition to a remote rainforest in Australia. Here are pictures of the impressively camouflaged leaf-tail gecko, the golden-colored skink and the rock-loving frog.
30 October 2013, 09:59 AM ET
During an expedition to a remote part of northeastern Australia where few humans had tread, scientists discovered three new species of vertebrates: an impressively camouflaged leaf-tail gecko, a golden-colored skink and a rock-loving frog.
30 October 2013, 09:23 AM ET
This wallpaper shows Grand Teton National Park in Wyoming, which preserves a spectacular landscape rich with majestic mountains, pristine lakes and extraordinary wildlife.
30 October 2013, 09:06 AM ET
Perhaps triggered by strong winds, globs of decomposed fish flesh recently rose from deep in the Salton Sea, coagulated into spheres on the lake surface and piled up on shore.
30 October 2013, 09:04 AM ET
Researchers made a gross, but fascinating, discovery on the shores of California's salty Salton Sea: Balls of coagulated rotten fish flesh.
29 October 2013, 05:43 PM ET
In a few weeks, NASA's Operation IceBridge will take to the skies for another busy season of monitoring ice sheets, glaciers and sea ice from above. This year, the mission will be stationed in Antarctica for the first time.
29 October 2013, 04:24 PM ET
Mercury-contaminated sediments are washed downriver after floods in northern California, new research shows.
29 October 2013, 12:36 PM ET
Some people and places may never be the same since Superstorm Sandy. Here are five ways Hurricane Sandy totally changed the East Coast.
29 October 2013, 12:20 PM ET
Flooding from storm surge has caused more deaths during hurricanes than any other hurricane threats combined since 1900, and yet the National Hurricane Center has not yet devised a system of categorizing storm surge.
29 October 2013, 12:05 PM ET
A by-the-numbers look at the devastation caused by Hurricane Sandy.
29 October 2013, 12:05 PM ET
Hurricane Sandy made landfall on Oct. 29, 2012, sending floodwaters pouring across the densely populated barrier islands of Long Island and the Jersey shore, including Breezy Point in the Rockaways, Queens.
29 October 2013, 11:07 AM ET
Incredibly sensitive seismic stations spread across the United States captured what it looks like when there's an earthquake right next door. The ripples spread across the continent, revealing the quake's orientation and motion.
29 October 2013, 10:37 AM ET
Researchers have dissected the two deep-sea oarfish that washed ashore in southern California this month. So far, they found that one was teeming with worms and the other was about to have babies.