Renewable energy has made great strides in the U.S. recently. But if you take a look around the globe, you'll find equally encouraging signs.

Even partial shade can dramatically cut an entire solar array's output — but not any more. An award-winning team believes it has the answer.

Learn some of the lessons serial entrepreneur Hugh Whalan has learned in the 7 years he’s been working on renewable energy in the developing world.

How hip to hybrid cars are you? Zero to sustainability: Test your hybrid car IQ with this quiz.

Clean energy sources are producing record amounts of power in markets across the world.

After the 2007 Burning Man, volunteers repurposed a solar array for a local school. That installation led to many, many more.

In rural areas, Internet connectivity can be a powerful force for economic empowerment.

Breakthroughs in artificial photosynthesis could help harness the sun's power for clean, efficient production of liquid hydrogen.

New documentary from the director of 'Fuel' and 'The Big Fix' offers real alternatives to fossil fuels.

Israel’s largest international green energy conference takes place this weekend in Eilat.

The island nation is using its natural and cultural resources to attract filmmakers from around the world.

WIth room for 5,000 residents, the $26 billion Ocean Spiral scheme offers a subaqueous alternative to overcrowded and costly terrestrial living.

Better technology and more accessible data are helping drive new change.

The concept shoe is reminiscent of the electronic-laced shoes from the 'Back to the Future' movies.

Increased renewables, decreased emissions and falling energy prices. Germany's ambitious energy plan may be starting to pay off.

Thousands of drilling rigs are idle and roustabouts are being laid off. Why not put them to work drilling for renewable energy?

Corporate renewable energy goals that once looked ambitious are being met much earlier than expected.

Australian teen's invention could help make clean water easy and affordable to access.

The conceptual Dutch Windwheel takes the term 'mixed-use development' to dizzying new extremes.

Fom Argentina to Mexico, solar in Latin America is likely to grow like gangbusters in the coming years.

These are the largest towns in America with the smallest environmental footprints.

Kerosene lanterns are dangerous, polluting and unhealthy. That's why one charity aims to eliminate them by the end of the decade.

Build enough Powerwall batteries and you can run the world on renewable resources.

An award-winning MIT team has created a portable, solar-powered desalination system that could provide freshwater in remote locations.

The Swedish furniture giant is spending staggering amounts on renewables and climate adaptation, putting entire countries to shame.

High-voltage utilities are experimenting with generating energy from renewable feedstocks available locally.

Technology could be used to generate electricity or even propel tiny toy cars.

Developers hope the design will bring affordable lighting to people worldwide who live along the coast.

With the power of 5,000 suns, the real engineering breakthrough with the Solar Sunflower might be its cooling system.

The WindChill uses biomimicry to help preserve food in rural areas without access to electricity.

U.N. task force looks at turning one big problem into an energy resource.

Bill Gates, Mark Zuckerberg and other billionaires have announced a new private coalition to help fund development of nascent sustainable technologies.

No outlet needed for this lamp — just plug it into the nearest plant.

The same thing that keeps the lights on and appliances humming tastes great on a cracker.

Although solar panels do most of the heavy lifting, so to speak.

Efficiency isn't sexy, but it gives you a lot more bang for the buck.

Photovoltaic cells convert the sun's energy into electricity — but what if solar energy could instead be converted directly into liquid fuel?

Wave power has the potential to supply 25 percent of the nation's energy.

As President Barack Obama nears the end of his second term, let's take a look at his final record on the environment, climate change and green policies.

Louis Michaud's atmospheric vortex engine or AVE could power the world, if only the world would listen.

Tyer Wind has based its proposed wind turbines on a hummingbird flapping its wings.

Massive investment coupled with falling prices has created a perfect renewable storm in the Golden State.

Bacteria can help solar panels convert sunlight to energy, even on overcast days.

Norwegian cruise operator Hurtigruten is instituting a plan to power its ships using dead fish, part of an effort to be more environmentally sound.

Scientists are working to harness the power of the static electricity to power our devices. It's a surprisingly mysterious natural phenomenon.

By 2020, onshore wind and solar power are expected to be cheaper sources of new electricity than any fossil fuel.

Advanced methane capture could make a significant dent in U.S. energy demand.

Hi-tech biomass gassification plant will cut Middlebury College's CO2 emissions by 40 percent.

Connecticut inventor and tinkerer Dave Nichols thinks cars should run on biomass. He just might just be on to something.

The old fairy tale has become reality on Samso, where waste straw is turned into a valuable resource that heats a majority of the homes on the island.