One British company is using plasma to transform waste into energy. How?» Read More
Could kites hold the key to cleaner, cheaper energy? Sustainable Energy takes a look.
Two companies built carbon extraction systems to pull greenhouse gases out of the air...and sell it.
Republican presidential candidats have mixed, and sometimes opaque, views on climate change and global warming, and what to do about it.
For environmentalists around the world plastic is becoming a major headache. Could worms offer a solution?
Oil prices recently topped $50 a barrel and UBS says they'll be above $70 within a year. Here's why.
There's a lot more to the true cost of a Tesla than you might think. Options and state and federal tax breaks make a big difference.
Oil prices crossed the $50 mark per barrel, but the commodity's future growth all comes down to this one thing, says Steve Kopits.
The year isn't over yet but T. Boone Pickens says his prediction for $70 oil by year end isn't looking good. Here's why.
This company is looking to light up off-grid, rural African communities using an innovative "pay-as-you-go" system.
An MIT start-up has developed technology that is dramatically improving the way milk can be stored in rural areas.
Residential rooftop solar in California, the very heart of the industry, could be facing a major roadblock in the coming months.
The U.S.'s largest home solar power installer says it will produce the world's most efficient solar panel.
A French company has come up with an innovative way to boost the range of electric vehicles.
At the end of this year, leaders from around the world will convene in Paris for COP21. Sustainable Energy gives you the lowdown.
A team of experts has come up with a solar cell concept using an ancient Japanese craft.
Green schools are not only good for the environment, they may be good for kids' health, too, says Rick Fedrizzi.
One analyst says an automaker that competes with Volkswagen may have the right product formula to benefit now.
Biofuels could transform the aviation industry. CNBC's Sustainable Energy takes a look how.
Starbucks, Wal-Mart and Goldman Sachs are among the latest round of companies making the pledge to convert completely to renewable energy.
CNBC's "Sustainable Energy" takes a look at how wind, sunlight, tides and geothermal heat are becoming a big part of the world's energy mix.