The U.S. energy sector is 'in the midst of a transformation,' according to a new report, thanks to the growing use of natural gas and renewable power sources.

Top polluters would pay $20 per ton of carbon emissions under the carbon tax plan, with 60 percent of the revenue returned to each U.S. resident.

The gassy hotspot is centered over New Mexico's San Juan Basin, where some 40,000 wells suck out natural gas trapped in coal seams.

We've found several camping areas on lakes, rivers and the ocean that offer beautiful views and plenty of recreational opportunities.

Apparently touring other people's chicken coops is what all the cool kids are doing these days.

U.S. Postal Service expands electronics recycling program. Customers can trade in old cellphones for cash at 3,100 USPS retail locations.

If you're looking for ideas on where to travel this summer, this list compiled through a Yelp algorithm is a good starting point.

Obama and Jintao announce sweeping clean energy 'cooperation plan' that could significantly reduce global greenhouse gas emissions.

Lisa Jackson's first official visit to China results in the creation of a new committee, but will the committee be able to achieve anything?

As the United States seeks to rely less on imported oil, a few states are leading the charge in the renewable energy revolution.

It's worth keeping tabs on some of the super-cool clean tech projects being backed by ARPA-E. Here are some of our favorites.

2012 saw the highest rate of alternative, renewable energy sources in the United States.

IKEA gusts into the U.S. wind energy sector with an investment in an Illinois farm capable of generating enough annual energy to power 70 stores.

What better place for the Swedish furniture emporium to acquire its biggest global clean energy investment than the Lone Star State?

American chemists are searching for new and resourceful ways to extract uranium from deposit-rich oceans in order to reduce the expensive mining process's cost.

Jaguars used to roam all over the Southwest but now are an extreme rarity. And this unique cat is already threatened by the mining industry.

Visiting Florida's Space Coast ahead of next week's primary, the GOP presidential candidate vows to build a permanent U.S. colony on the moon.

The amendment, part of a pending transportation bill, marks the Gulf Coast's 'most important conservation victory in a decade,' advocates say.

Here's a graphical glimpse at America's most endangered wildlife, where they live and how many are left.

Seven species of Hawaiian pollinators are the first bees added to the U.S. endangered species list — but they're unlikely to be the last.

HyperSolar magnifying film can increase solar panel efficiency by up to 300%, making solar competitive with fossil fuels.

Here are a few highlights from legislation that's poised to boost wilderness protection across the country.

Eating guinea pig is now a growing trend in the U.S., and activists say it's better for the environment than beef.

In a landmark decision, Europe restricts a popular pesticide linked to declining honeybee populations.

First the Danes fund the largest wind company in the U.S. Now the Spaniards are set to open a 24-megawatt solar plant in California. Why are American investors

These critical elements are abundant in Alaska's Bokan Mountain, but extracting them could be a long and difficult process.

A trio of U.S. financial giants have teamed up to spell out why the American economy can't afford runaway climate change.

The controversial bill, which now heads to the Senate, would open more national parks to hunting and protect the use of toxic lead ammunition.

The EPA staff is being cut by 6 percent, disrupting services like pollution cleanup and public health research.

U.S. authorities have largely suspended their investigation of the molasses spill that fouled Hawaiian waters last month.

In large part to gas wells and cow farms, the United States is spewing 50 percent more methane than regulators thought.

The chemical’s makers can’t guarantee Diphenylamine's safety, so the EU doesn't allow its use. Here in the U.S. it’s found on 80 percent of conventional apples.

Brown marmorated stink bugs are wreaking havoc — and just reeking — as they spread throughout the country.

Invasive "crazy ants" have been displacing fire ants, and a curious defensive strategy may be behind the crazy ants' bold takeover.

The bat-killing fungal infection known as white-nose syndrome has been found in two new U.S. states.

A study found that an invasive species of camel cricket from Asia is now far more common in American basements than the native variety.

All it took was one avian aficionado with a love of William Shakespeare to introduce this aggressive species to the United States.

The first release of moths with genetically-engineered "self-destruct" switches onto American farms is being heralded as an insecticide-free solution to pests.

National Wildlife Federation honors America's best environmental schools.

The Environmental Voter Project has a plan to awaken a sleeping giant in American politics.

New interactive game takes a closer look at national policy choices that affect food security around the world.

Arguing that 'Americans are already paying the price of inaction,' Obama unveiled an unprecedented national climate strategy in a sweltering speech Tuesday.

In a surprise announcement, Earth's two largest economies revealed a game-changing agreement to cut carbon emissions.

Here are 5 things to know about the EPA's climate plan.

To solve organ shortages, some places are making it the norm to have people opt out of organ donation.

After nearly 100 years of burning coal to heat and cool Congress, the U.S. Capitol Power Plant will switch over to less harmful natural gas.

Developed by the U.S. Geological Survey, the technology 'aims to reduce the impact of earthquakes and save lives and property.'

New research shows that urban green space largely benefits the wealthy and educated, not the underserved communities that need it most.

Many city dwellers leave urban areas to visit lakes and rivers, but these cities are ideal for people who don't want to travel far to swim, paddle or surf.

The District of Columbia had the most LEED-certified square footage per capita in 2011.