A divided federal appeals court has ruled that federal regulators went too far with new rules to control air pollution in parts of the eastern United States.
University of Florida researchers examine the carcass of a Burmese python.
University of Florida researchers examining the carcass of a large, pregnant Burmese python said Monday they found a record 87 eggs inside, giving them important clues about the reproductive capability of the dangerous, invasive species.
What do the 2010 heat wave in Russia, last year's Texas drought, and the 2003 heat wave in Europe have in common?
A Pennsylvania court has struck down a controversial provision of a state law that stopped municipalities from controlling where natural gas companies could drill.
A German court Wednesday reactivated a request to extradite controversial conservationist and "Whale Wars" star Paul Watson to Costa Rica after Watson's lawyer told the court he had skipped bail.
Well-known among youth as the ring-tailed critters singing "I like to move it, move it" in DreamWorks' "Madagascar" or the white-and-brown puppet host of the PBS show "Zoboomafoo," lemurs are a fan favorite.
Fans greet 12 giant panda cubs born in 2011 at the Chengdu Giant Panda Breeding and Research Center in China.
The first giant panda to be born in Japan in 24 years has died just one week after generating huge excitement in the country as locals celebrated the rare birth.
Japan holds three Australian anti-whaling activists accused of illegally boarding a Japanese ship. Kyung Lah reports.
South Korea is considering hunting whales in the waters off its shores for what it says are scientific purposes, drawing criticism from environmental groups and countries around the Pacific Rim.
"We are reaching the tipping point and the tipping point according to most scientists will be in less than 10 years. We don't have much time," says human rights and environmental campaigner, Bianca Jagger.
A rigorous green certification system is recognizing the next phase of eco design, which its founders describe as "the world's greenest buildings."
Is Poland the "El Dorado" of shale gas? CNN talks to Chevron, which is investing in the controversial energy source.
Poland may be sitting on a vast natural resource that could make it energy independent.
Can the roof of your house help you breathe easier by reducing the amount of harmful pollutants from urban air?
The Empire State Building is on an energy diet.
The Obama administration tightened rules on hydraulic fracturing Friday, requiring the disclosure of chemicals used in the process when done on federal and American Indian lands.
Photographer Roger Moukarzel's exhibition showcases his work highlighting the effects of global warming in Sweden.
The battle over hydraulic fracturing in the state of New York pits farmers against environmentalists, neighbor vs. neighbor, as gas companies wait to find out if they'll be able to unlock the natural gas trapped in the Marcellus Shale formation thousands of feet below the earth's surface.
One of the UK's most critically endangered butterflies is making a comeback thanks to a profit making partnership between private landowners and conservation organizations.
A new iPhone app is making waves in the commercial shipping world by providing an early warning system that aims to reduce maritime collisions with endangered whales.
Take a journey of discovery to north western Rwanda in search of the majestic mountain gorilla.
Mountain countries from around the world are seeking a common voice in global climate change negotiations to draw attention to the vulnerabilities of mountain areas.
Imagine you are sitting in your office simply doing your job and a nasty e-mail pops into your inbox accusing you of being a fraud. You go online and find that some bloggers have written virulent posts about you. That night, you're at home with your family watching the news and a talking head is lambasting you by name. Later, a powerful politician demands all your e-mails from your former employer.
Gorillas put off their food and stressed out orangutans, could nature tourism be bad for wild animals' health?
Land owners get rich from fracking, but don't know about violations in their backyards. CNN Money's Poppy Harlow reports.
South Africa has an energy deficit on its hands. Too many people want fuel for their cars and electricity for their homes, and the country is struggling to keep up with demand.
The Supreme Court gave an Idaho couple another chance Wednesday to challenge a government ruling barring construction of their "dream house," an important property rights defeat for the Obama administration.
Amid the skyscrapers, sidewalks and subways of New York City, scientists have discovered a new species of frog within view of the Statue of Liberty. In fact, the researchers who discovered the frog say the center of its range is Yankee Stadium in the Bronx.
Brazilian ranchers forced to replant after deforestation turn to seed collectors. CNN's Shasta Darlington reports.
Santino Sena wades through a knee-deep swamp, snatching up green seeds about the size of ping-pong balls that float on the surface of the water.
Inside Africa heads to the coast of Gabon in central Africa, in search of the endangered leatherback turtle.
Brazil stands at a crossroads in its efforts to preserve the Amazon rainforest as the government considers controversial legislation governing land use.
It was more than 40 years ago, but Ken Nedimyer still remembers the first time he went diving in the Florida Keys.
Ken Nedimyer and his nonprofit are working to restore endangered coral reefs in the Florida Keys.
The United States is undergoing an energy boom -- but the oil and gas industry says it could be much, much bigger.
The Australian government has angered koala conservationists by again delaying a decision on whether to add the national icon to the country's endangered species list.
A brief uptick in traffic-related air pollution may be enough to increase a person's short-term risk of stroke, new research suggests.
A community meeting Saturday at a school where over a dozen children have developed tic-like symptoms quickly became contentious, further dividing an already-polarized community.
The fracking-led oil and natural gas boom that's received widespread attention in the mainstream press has moved to a new medium: reality TV.
The environmental group Sea Shepherd has offered a $10,000 reward for information that leads to the conviction of those responsible for shooting at least seven sea lions in Washington's Puget Sound.
President Obama's half dozen energy proposals will, by and large, benefit nearly all players in the energy space and result in lower prices for consumers, analysts say.
Beijing ushered in the Year of the Dragon with a bold move.
President Barack Obama made a pitch for continued federal support of energy research during Tuesday night's State of the Union address.
For the third year in a row energy played a central role in President Obama's State of the Union address, with the president leaning hard this year on the twin themes of increased domestic oil and gas production and the need to invest more in renewable sources.
CNN films gorillas up close in Rwanda - one of three countries where mountain gorillas can be observed in the wild.
Three anti-whaling activists were injured in a clash with Japanese whalers off the coast of Antarctica on Wednesday when the Japanese crew used grappling hooks against pursuit boats, the conservation group Sea Shepherd said in statement.
Sea Shepherd president Paul Watson discusses Japan's plans to resume whaling.
U.S. Interior Department announces it is banning the importation of four snake species. CNN's John Zarrella reports.
The United States is banning the importation of four species of snakes and their eggs, the Interior Department announced Tuesday.
The way some Republicans talk about the Environmental Protection Agency, you would think it was created by a bunch of pot-smoking hippies communing at a nudist camp in northern California -- when in fact, the EPA was created by one of their own, Richard Nixon, in 1970.
LZ Granderson looks at calls by Republican candidates to limit or shut down the Environmental Protection Agency.
Environmental campaign group Greenpeace has warned that if oil leaks from the stricken cruise liner Costa Concordia it could cause an environmental disaster, threatening marine life including birds, whales and sharks.
Japan on Friday handed over to Australian authorities three anti-whaling activists held aboard a Japanese vessel after illegally boarding the ship to protest Japan's annual whale hunt in Atlantic waters.
Good news for homeowners: Natural gas prices are the lowest they've been in years. And they're expected to fall even further, thanks to growing production and slack demand.
Foreign firms, hungry to cash in on the American energy boom, have invested nearly $6 billion in U.S. gas and oil drilling in the last few weeks.
Japan said Tuesday that it would hand over to Australian authorities three Australian anti-whaling activists being held aboard a Japanese vessel, but that it would press on with its annual whale hunt in the seas near Antarctica.
Chantell and Mike Sackett call their legal challenge against federal regulators a "David vs. Goliath" fight over property rights.
The tactic du jour for environmentalists trying to sell a skeptical public on tighter regulations is this: spin the thing as a job creator.
Three Australian activists are being held aboard a Japanese ship Monday after illegally boarding the vessel to protest Japan's annual whale hunt in Antarctic waters.
The Environmental Protection Agency recently finalized a rule that for the first time requires U.S. coal and oil-fired power plant operators to limit emissions of mercury and other hazardous air pollutants.
Prisoners in ice, more than 100 Beluga whales in far eastern Russia risk death unless rescued soon.
The EPA unveils new standards on toxic pollutants from coal power plants.
The Environmental Protection Agency finalized new federal standards on toxic pollutants and mercury emissions from coal power plants Wednesday, a move being praised by environmentalists but criticized by others, who predict lost jobs and a strain on the nation's power grid.
Ohio hasn't been an oil powerhouse for nearly 100 years.
For Canada, the cost of either meeting its commitments under the Kyoto Protocol, or failing to do so, was too much to bear.
China is open to accept a legally binding global agreement to reduce carbon emissions. CNN's Robyn Curnow explains.
An agreement reached Sunday in South Africa will help tackle the challenges of climate change for years to come, the United Nations' chief said.
The Japanese government has affirmed that $29 million from its budget for post-earthquake and tsunami reconstruction is going toward extra security measures for the country's whaling fleet, angering environmental activists like Greenpeace.
Just three years after fears of an energy supply shortage, executives of the world's leading oil companies now foresee a bonanza of oil and natural gas on the horizon.
Deforestation in the Brazilian Amazon has decreased to the lowest level since record-keeping began in 1988, according to official estimates.
VICE visits the hometown of two environmental activists who were murdered in May outside their home in the Amazon.
Todd Stern talks to CNN's Robyn Curnow about the politicalization of climate change in the U.S.
CNN's Robyn Curnow reports from the 17th U.N. Climate Change Summit in Durban, South Africa.
They are the world's cultural capitals, the nerve centers of innovation and the engine rooms of economic growth, but could cities also hold the key to cutting carbon emissions long-term?
A second batch of e-mails thought to originate from the UK research unit involved in the "Climategate" controversy in 2009 has been posted on the Internet.
Last summer a Halliburton executive did the unthinkable: He took a big ol' swig of hydraulic fracturing fluid.
Video shows how the Black Rhino Range Expansion Project helped move black rhinos to a safer, more spacious location.
Onetime nursery school teacher Gale McCullough explains how the photo site Flickr helps her global whale research.
Want to help save the humpback whale? Pick up a camera and start taking pictures, says Gale McCullough, a "fluke matcher" at Allied Whale, a research group.
An independent study of global temperature records has reaffirmed previous conclusions by climate scientists that global warming is real.
Gov. Rick Perry touted part of his plan to boost the economy at Tuesday night's Republican presidential debate in Las Vegas, Nevada, saying his energy strategy would create 1.2 million jobs. Last week, Perry said his plan would focus on tapping unexplored domestic sources for oil and gas. To do this, he said, regulations on oil and gas producers would need to be changed. Fewer rules would free up drilling in Alaska and the Gulf of Mexico, and expand clean-coal technology resources, he said.
Climate change is shrinking many plant and animal species and is likely to have a negative impact on human nutrition in the future, according to a new study.
Environmentalist Philippe Cousteau takes a look at a baby sea turtle on Cape Island, South Carolina.
Crews sprayed foam Wednesday to extinguish pockets of fire remaining at a Texas chemical plant two days after a massive blaze sent bright flames and thick plumes of smoke high into the sky.
Japan says it will hunt whales in the Southern Ocean this winter and will send a Fisheries Agency ship to guard its whalers against promised intervention by a conservation group.
The subcommittee created earlier this year by President Obama to study shale gas drilling is expected to produce a final report before Christmas. The subcommittee will recommend ways that regulators and the industry can reduce the environmental impact of fracking.
Global energy use is expected to jump 53% by 2035, largely driven by strong demand from places like India and China, according to a report Monday.
One couple is struggling to determine why their home smells like natural gas and why the tap water ignites. WDTV reports
The government has revised its rules on sea turtles to try to decrease the number killed every year and reduce the threats they face.
Unlike in previous jobs speeches, where he's been a cheerleader for clean energy and a green economy, President Obama didn't say the word "green" once in his address to a joint session of Congress on Thursday night. That seems to fit the mood of the country, but in fact, Obama is missing a stimulus program in every American gas tank.
With job creation taking center stage in American politics, the oil industry Wednesday made a pitch for drilling more widely. With looser restrictions, the industry says it could deliver 1.4 million new jobs, boost tax rolls by $800 billion, and increase domestic energy production almost 50%.
Let's take a little quiz. Which piece of home technology do you think uses the most electricity?
Mysterious sightings in California have sparked a renewed interest in the "master of the grasses"
CNN's Nkepile Mabuse travels through the rainforests of Cameroon, to look at the growing and illegal commercial trade of bushmeat.
A few years ago I came across a newspaper article about illegal human trafficking into the EU.
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