10 March 2014, 11:08 PM ET
Tree-ring data sheds light on climate change's historic and modern impact.
10 March 2014, 10:56 PM ET
Open ocean clouds have been found to contain biological substances that can be traced to the waters where they formed.
10 March 2014, 04:23 PM ET
Thanks to the government shutdown and Hurricane Sandy, America's national parks saw a three percent drop in visitors last year from 2012.
10 March 2014, 03:00 PM ET
Like an ice age radiator, heat from volcanoes helped Antarctica's plants and bugs survive Earth's glacial periods.
10 March 2014, 02:36 PM ET
FEMA's new NYC flood maps are already outdated.
10 March 2014, 11:46 AM ET
The Icicle Atlas is a soon-to-be open online database containing images of more than 200 lab-grown icicles as they develop. Here are some of these images of frozen beauty.
10 March 2014, 09:43 AM ET
Antarctica is the coldest, windiest, driest continent on the planet, and researchers are still discovering many of its secrets. Find out some of the most interesting facts about the southernmost continent!
10 March 2014, 08:39 AM ET
An earthquake of preliminary magnitude 6.9 struck last night off the coast of northern California, according to the U.S. Geological Survey (USGS).
09 March 2014, 02:01 PM ET
Researchers have found four new substances in the stratosphere capable of depleting the ozone layer.
09 March 2014, 02:00 PM ET
The oceans became a lethal sulfuric-acid stew after the huge asteroid impact that wiped out the dinosaurs some 65 million years ago, a new study suggests.
08 March 2014, 04:03 AM ET
Whether in food or cosmetics, palm oil is everywhere — but where is it coming from?
07 March 2014, 03:56 PM ET
Antarctica may be the last place one would expect to find a mathematician, but Ken Golden isn't your average mathematician. Golden, a mathematician at the University of Utah, is using math to model the melting of the polar ice caps.
07 March 2014, 03:46 PM ET
Mathematician Ken Golden has taken multiple trips to the Antarctic and Arctic to study the math of melting sea ice.
07 March 2014, 01:58 PM ET
A new study confirms that one of Oklahoma's biggest man-made earthquakes, caused by fracking-linked wastewater injection, triggered an earthquake cascade that led to the damaging magnitude-5.7 Prague quake on Nov. 6, 2011.
07 March 2014, 08:40 AM ET
Geoscientists are pioneering a new way to make sense of past ice ages — with volcanoes that erupted through ancient ice sheets.
07 March 2014, 05:00 AM ET
06 March 2014, 11:58 PM ET
Will the power plants that bring energy independence encroach on wildlife?
06 March 2014, 11:07 PM ET
According to a new analysis, the U.S. is at risk for its own Fukushima-like disaster.
06 March 2014, 03:53 PM ET
A bevy of satellites have caught a bird's-eye view of Guatemala's Pacaya volcano since the peak erupted on March 2.
06 March 2014, 02:00 PM ET
A model for how river networks take shape, such as in the Appalachians, could help improve understanding of how landscapes change through time.
06 March 2014, 12:04 PM ET
New 3D images from beneath a volcano in the Galapagos Islands show how these volcanoes differ from those in Hawaii.
06 March 2014, 12:00 PM ET
San Francisco's Board of Supervisors met this week and unanimously voted to begin phasing out the sale of single-use, plastic water bottles less than 21 ounces on city-owned land.
06 March 2014, 09:30 AM ET
The effects of global warming could cost the world $1.45 trillion in economic damages, with the planet's crop production projected to decline up to two percent every decade, according to news reports.
06 March 2014, 12:48 AM ET
The power of scientific data becomes even more profound in the hands of artists.
05 March 2014, 05:32 PM ET
The Great Lakes ice cover has reached 91 percent, the second highest since 1973.
05 March 2014, 04:09 PM ET
Redwood poaching is increasingly a problem in the national and state parks of northern California.
05 March 2014, 02:39 PM ET
Different regions of the United States are more susceptible to earthquakes than others, and now a new map helps pinpoint the regions most prone to seismic shock waves.
05 March 2014, 01:44 PM ET
The dry conditions in California have only worsened winter haze, so regulators are implementing burn bans to prevent soot from accumulating.
05 March 2014, 11:52 AM ET
Incredible video shows a gang of orcas attacking a lone blue whale off the coast of California.
05 March 2014, 10:24 AM ET
This stunning wallpaper shows Joshua Tree National Park in California. Viewed from the road, this desert park only hints at its vitality.
05 March 2014, 12:15 AM ET
A U.S.-Mexico agreement on dam use will pulse water into the Colorado river basin.
04 March 2014, 07:01 PM ET
If current trends in global warming continue unmitigated, some of the world's most well-known and historically significant cultural landmarks could be destroyed by rising global sea levels, according to a new study.
04 March 2014, 05:42 PM ET
Researchers have discovered that willows play a surprising role in countering climate change in Alaska, one of the fastest-warming spots in the world.
04 March 2014, 05:19 PM ET
A pesky algal species in Canada — sometimes called "rock snot" due to the way its tendrils attach to rocks — is increasing due to global warming and not human introductions, a new study suggests.
04 March 2014, 03:27 PM ET
Until April 4, readers can vote for the most compelling or awe-inspiring photos of our planet from space in NASA Earth Observatory's Tournament Earth.
04 March 2014, 02:50 PM ET
As invasive species continue their march across continents, one weapon stands in their way: a bitterly cold winter. Here are six invasive pests whose populations might not survive sub-freezing temperatures.