A Penn State lab has found a way to make hydrogen fuel from wastewater and seawater with no emissions. So why aren't we doing this?

Big hydrogen power plants like the one just installed in Bridgeport, Conn., can complement a fleet of fuel-cell cars.

Hyundai's hydrogen-powered Tucson has 265 miles of range, 3-minute fills, and free fuel if you sign a lease now.

December is a chilly time for stargazing, but catching a glimpse of the Geminids makes it all worthwhile.

NASA's Planet Hunter, TESS, discovered its first potentially habitable Earth-sized planet called TOI 700 d, located 100 light-years away.

A cosmic collision between two stars caused a stunning gas rainbow reaction.

A 2012 study of homes in L.A. shows just how menacing stuff can be: "Many find their accumulated possessions exhausting to contemplate, organize, and clean."

So what if millennials killed mayonnaise and golf. Baby boomers killed the stuff that really matters — like the climate.

Who says you can't outrun old age?

150 years after outdoor markets fell out of favor with the public at the location, an outdoor farmers market is resurrected at the Philadelphia landmark.

Gift will help support farmers market and healthy bodega programs; Newark Mayor Cory Booker speaks at the launch event.

American Farmland Trust morphs the America’s Favorite Farmers Market contest into the I Love My Farmers Market Celebration..

You can still be a proud sustainable foodie if you don’t grow your vegetables, raise your chickens or do it all yourself.

Video: Alexandra Cousteau investigates The Hoover Dam and the draining of Lake Mead.

Learn simple tips to go green around your home and during the day from Laura Turner Seydel.

Laura Turner Seydel offers easy daily transportation tips to lessen your impact.

Learn how to make eco-smart decisions at home.

Learn what is green in the stimulus package.

Despite lawsuits, the DOE awards the all-electric auto manufacturer its first big government loan.

Wyoming Gov. Dave Freudenthal feels that his state doesn’t need green building codes.

Two groups have received $80 million in funding from the ARRA for advanced biofuels research.

Google announces breakthrough in mirror technology that could cut the costs of solar thermal power in half.

The U.S. Department of Energy has announced the 20 communities that will receive $60 million in Energy Efficiency and Conservation Block Grants.

The U.S. Department of Energy recently awarded $24 million to three algal biofuels research projects.

DOE Recovery Act awards continue with the recent announcement of $92 million in funding for energy research programs.

The Department of Energy has awarded $188 million to small businesses in 34 states to spur clean energy innovation, job creation and more.

Sandia National Laboratories is investing $8.5 million in four projects that are part of the Solar Energy Grid Integration Systems (SEGIS) program.

The Department of Energy announced $5 million in funding for five wind energy projects.

Experts argue that the downsized power sources can provide safe, efficient energy.

The U.S. Department of Energy awards $57 million to 33 small business projects.

The DOE has awarded $5 million for offshore wind energy facilities and renewable ocean energy projects.

Turbine sites in Delaware, Maryland, New Jersey and Virginia identified as prime parcels for projects.

The fourth round of ARPA-E funding totals $130 million for five different program areas.

The U.S. Department of Energy will provide more than $11 million to support eight geothermal energy projects.

A new analysis reveals that greenhouse gas emissions in 2010 surpassed even the worst-case scenario envisioned by scientists four years ago.

Luxury automaker Fisker has officially missed a $10 million payment to the Department of Energy. Is a bankruptcy filing next?

Trapped, starving dog is rescued weeks after Hurricane Dorian barreled through the Bahamas.

Newman’s Own gives all of its profits to charity, like the one giving people in Ghana and India reliable access to clean water.

Newman’s Own gives all of its profits to charity, like a therapeutic residential facility that supports 250 students and 200 animals.

Part of the issue is succulent habitat destruction, but the bigger problem is poaching by highly organized global smuggling rings.

Vacationers are becoming wary of theme parks as the swine flu outbreak worsens.

Contaminated sites being used to house wind farms, solar arrays and geothermal power plants.

North Carolina, Virginia and South Carolina may have something to gain when it comes to offshore drilling, but the events of 2010 remind us that they also have

Moose lasagna, a hot seller at European stores operated by the world-dominating purveyor of flat-pack furnishings, is found to contain trace amounts of pork.

Single-stream recycling may be convenient, but it has a few pitfalls. And what consumers don't know can hurt the recycling process.

The fast-food chain is switching to paper straws later this year.

There's an 'urgent need' for rules governing the use of lab-grown brains.

By turning coffee waste into auto parts, this collaboration builds on the two companies' commitments to environmental stewardship.

New research finds that parents who suppress their anxiety actually transmit it to their kids.

Learn how we help people interact in an environmentally friendly way