16 December 2014, 02:44 PM ET
The most diamond-rich rock ever found was discovered in Russia's Udachnaya diamond mine.
16 December 2014, 12:49 PM ET
Regions of the world that experience extreme weather shifts due to climate change may become more vulnerable to the spread of cholera, scientists report.
16 December 2014, 12:16 PM ET
The vast ice sheet covering Greenland could melt more quickly in the future than existing models predict, new research suggests.
16 December 2014, 12:00 PM ET
Conventional Earthquake measurement equipment is not sensitive enough to quantify the slow moving "slip" of a fault in the Earth. Researchers are now using GPS tools to measure movement, which may help assess risks of destructive earthquakes.
15 December 2014, 11:47 PM ET
Runaway global warming can't be stopped if developing nations don't have realistic options.
15 December 2014, 09:19 PM ET
Global warming is the gradual heating of Earth's surface, oceans and atmosphere.
15 December 2014, 11:20 AM ET
The Lima Accord set the framework for an unprecedented global pact to slow climate change.
13 December 2014, 01:41 AM ET
As ice melts, the world now has a chance to respond.
13 December 2014, 01:20 AM ET
Sometimes, to solve that flooding problem you need an artist.
12 December 2014, 03:57 PM ET
Researchers working in the Gulf of Mexico are using masses of jellyfish to help identify where the oceanic environment has changed. University of Southern Mississippi's Dr. Monty Graham explains why and how conditions in the water are shifting.
11 December 2014, 04:50 PM ET
In dark waters just outside the Golden Gate Bridge, underwater archaeologists pinpointed the final resting place of the worst shipwreck in San Francisco's history.
11 December 2014, 02:00 PM ET
New, more precise dates for India's Deccan Traps eruptions could revive the idea that the massive set of lava flows caused the Cretaceous-Tertiary (K-T) extinction.
11 December 2014, 10:10 AM ET
The best look yet at the hidden, ice-covered volcanic mountains in West Antarctica's Marie Byrd Land reveals never-before-seen deep valleys between the ranges, which means more glacial melting is possible than thought.
10 December 2014, 02:00 PM ET
Ocean waters may hold 10 times more garbage than a previous estimate.
10 December 2014, 11:05 AM ET
Scientists don't know exactly what's behind the recent lull in major hurricane landfalls in the U.S.
10 December 2014, 01:28 AM ET
Research results will have implications for many other lakes in the U.S. and around the world that are also experiencing toxic blooms.
09 December 2014, 06:58 PM ET
Mysterious Atlantic coast ocean oases host newfound marine life, and vibrant and diverse corals, but these environments are under threat.
08 December 2014, 06:01 PM ET
Natural temperature swings in the ocean, not global warming, are driving California's extreme drought, according to a new government study.
08 December 2014, 03:48 PM ET
The origin of life on Earth about 4 billion years ago remains one of the biggest unsolved mysteries of science, but a new study is shedding light on the matter.
08 December 2014, 07:02 AM ET
A gamma-ray burst, the most powerful kind of explosion known in the universe, may have triggered a mass extinction on Earth within the past billion years, researchers say.
05 December 2014, 04:59 PM ET
The 2012-2014 California drought is the worst to parch central and southern California in the past 1,200 years.
05 December 2014, 09:47 AM ET
California's rain shortfall isn't unprecedented, but its parched soils are. Researchers blame the heat.
05 December 2014, 06:09 AM ET
Yosemite Falls reappeared in full glory after two days of significant rain in the Sierra Nevada.
04 December 2014, 06:04 PM ET
Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle.
04 December 2014, 04:04 PM ET
Shallow ocean waters everywhere around Antarctica have warmed steadily for the past 40 years.
04 December 2014, 01:03 PM ET
04 December 2014, 06:58 AM ET
The most recent major ice age on Earth might have begun with the buildup of ice sheets in Antarctica, researchers say.
03 December 2014, 11:53 PM ET
Weather prediction may become financially self sustainable, but the hunt for climate data lags far behind.
03 December 2014, 10:13 PM ET
As the most profitable fast-food chain in the world, McDonald's has a responsibility to source its palm oil from responsible plantations.
03 December 2014, 02:41 PM ET
A new study shows how volcanoes cook up an eruption from the cold mush of crystals in their underground magma chambers.
03 December 2014, 07:12 AM ET
Scientists have lifted the lid off North America, sharpening their view of the mysterious structures underneath the United States.