31 July 2014, 05:39 PM ET
Scientists are still assessing the damage to coral communities from the catastrophic 2010 Deepwater Horizon oil in the Gulf of Mexico.
31 July 2014, 05:23 PM ET
Advocates for indigenous tribes are increasingly worried about a group of people near the Brazil-Peru border who may be facing violent attacks from illegal loggers and drug traffickers exploiting the densely forested region.
31 July 2014, 04:31 PM ET
The extent of damage from the 2010 Deepwater Horizon oil spill may be greater than scientists previously thought. A study of coral communities in the region found evidence of damage more than 13 miles (21 kilometers) away from the spill site.
31 July 2014, 03:16 PM ET
The U.S. Geological Survey plans to map the continental shelf off the East Coast using acoustics, but some environmentalists say marine mammals might be at risk.
31 July 2014, 02:32 PM ET
Arctic sea ice extent won't reach a record low this year, but it is still declining and could place in the top
31 July 2014, 02:30 PM ET
Record-high waves hit the Beaufort Sea, north of Alaska, in September 2012, when Arctic sea ice shrank to an extreme summer low.
31 July 2014, 11:16 AM ET
Wildfires burn in Canada's Northwest Territories, plaguing residents with smoke and isolating cities. This fire season has been extreme in the Northwest Territory.
31 July 2014, 11:08 AM ET
A recent map of fine atmospheric particles called aerosols reveals how fires and dust can inject particles high into the atmosphere.
30 July 2014, 07:05 PM ET
Scientists have launched an investigation into a giant crater that suddenly appeared in Siberia. Internet speculation on the hole's origins abounds.
30 July 2014, 04:00 PM ET
Victims of a brown recluse spider bite might feel perfectly fine -- until a severe pain described by most as a throbbing "fire" strikes 24 hours later, a new study reports.
30 July 2014, 03:45 PM ET
Earth and Moon in the Hadean epoch were pummeled by large impacts letting magma flow out. But, at the same time, some parts of Earth’s surface could have retained liquid water, allowing pre-biotic compounds to form; perhaps even life itself.
30 July 2014, 02:00 PM ET
For 53 months, scientists watched a female octopus in the deep sea vigilantly guard a single clutch of eggs until they hatched. This was the longest brooding period scientists have ever observed — not just for octopuses, but also for all animals.
30 July 2014, 02:00 PM ET
A real-life "Octomom" off the coast of California has been declared a champion of parenting in the animal world. Scientists watched as she shielded her eggs for a record 4.5 years.
30 July 2014, 01:22 PM ET
When local peoples control their own land, they protect it.
29 July 2014, 03:01 PM ET
Bacteria living in the warm waters off the Bahama Islands may feed on the mineral-rich dust carried over by wind from the Sahara Desert, a new study finds. The growing bacteria create the limestone that shapes some of the Bahamas' structures.
29 July 2014, 12:08 PM ET
They've been described as walking artichokes and the most trafficked mammals in the world. Now, conservationists warn that pangolins, or scaly anteaters, could be eaten out of existence if illegal hunting and poaching continue.
29 July 2014, 10:59 AM ET
Conservationists warn that all eight species of pangolins, or scaly anteaters, may be eaten to extinction if illegal hunting and poaching continues.
29 July 2014, 10:09 AM ET
A NASA imaging system has captured the first high-resolution images of Alaska's remote and poorly studied forests.
29 July 2014, 01:59 AM ET
Hawai'i faces the same risks from rising sea levels as other atolls and islands.
28 July 2014, 04:44 PM ET
A snapshot from the International Space Station captures the Okavango Delta of Botswana in shimmery glory. This enormous inland delta is home to many of Africa's iconic species.
28 July 2014, 03:05 PM ET
The previous mass extinction, which wiped out the dinosaurs, happened about 65 million years ago, likely from a catastrophic asteroid that collided with Earth. In contrast, the looming sixth mass extinction is linked to human activity.
28 July 2014, 01:06 PM ET
The 'Pacific Garbage Patch', including debris from the 2011 Japanese Tsunami, travels in seasonal patterns. Coastal Observation and Seabird Survey Team's executive direct Julia Parrish explains the patterns. Full Story: http://goo.gl/IQ5gPC
28 July 2014, 11:54 AM ET
Tree rings in the waterlogged ribs of a sunken ship found at the World Trade Center site revealed that the vessel was likely built in 1773, or soon after, in a small shipyard around Philadelphia.
28 July 2014, 11:04 AM ET
COASST studies seasonal patterns of ocean debris to aid in the clean up of the Great Pacific Garbage Patch.
28 July 2014, 08:40 AM ET
In 2010, excavators discovered a wooden ship buried under the site of the World Trade Center in Lower Manhattan. A new tree ring study reveals that the vessel was likely built in 1773, or soon after, in a small shipyard around Philadelphia.
28 July 2014, 12:02 AM ET
The space rock that wiped out most of the dinosaurs may have had a colossal case of bad timing. If the impact had occurred a few million years earlier or later, more of the majestic beasts may have survived, scientists say.
27 July 2014, 08:51 PM ET
We are inclined to think that trees are a renewable natural resource. Yet precious hardwood trees have already been almost completely logged out from many countries across the tropics.
25 July 2014, 04:43 PM ET
The next big earthquake in Southern California could be smaller than expected, according to researchers who are rewriting the history of earthquakes on the San Andreas Fault.
25 July 2014, 11:31 AM ET
Researchers observed that a certain species of squirrel in New York City adapts its behavior to that of humans by avoiding unnecessary contact with people and going about its day uninterrupted.
24 July 2014, 07:54 PM ET
The obsessive attention to the state of the latest El Niño comes from the major global impacts it can have.
24 July 2014, 05:56 PM ET
The sky is thick with smoke in central Washington, as the state's largest wildfire in recorded history leaves a charred trail of burned homes and blackened trees.
24 July 2014, 05:36 PM ET
Four astronauts are currently living in a school-bus-size habitat that is anchored 62 feet (19 meters) underwater for a nine-day mission to test tech for future space expeditions.