We're Six Years Closer to a Clean Energy Future Than We Thought

Key price indicators in the clean tech industry are about six years ahead of estimates, and it’s mostly thanks to companies like Tesla that are pioneering cheaper, smarter solutions for mass-market consumption which can be used across a wide range of applications. This is a very good thing for Earth. » 4/09/15 7:30pm 4/09/15 7:30pm

LA's Street Lights Can Now Be Wirelessly Controlled

Los Angeles recently converted 140,000 of its street lights to energy-efficient LEDs—the largest such upgrade in the world. Now a new partnership with lighting giant Philips will allow the city’s Bureau of Street Lighting to wirelessly manage all those street lamps, similar to the way its Hue system allows you to… » 4/08/15 9:00am 4/08/15 9:00am

Video explainer: What is nuclear energy and why we don't have more of it

Our ability to harness nuclear energy has existed for quite a while now and yet nuclear energy is only responsible for providing 10% of the world's energy. There are 439 nuclear reactors spread across 31 countries with 160 more reactors planned for the future and yet nuclear energy has stagnated since the 80's. What… » 3/26/15 1:57pm 3/26/15 1:57pm

Our Cities Could Become High-Density Solar Power Plants

Solar energy has a dark side. Those gargantuan plants that sprawl out like deconstructed disco balls sacrifice valuable open space and put wildlife, and possibly human lives, at risk. A new study by Stanford researchers says that focusing our solar energy efforts in already-developed urban areas could yield more… » 3/17/15 5:35pm 3/17/15 5:35pm

This Real-Life "Mr. Fusion" Can Turn Leftovers Into Energy

Well, it's 2015, and right on cue, humanity has apparently invented its very own Mr. Fusion. The s0-called "Biobattery", designed by German scientists at the Fraunhofer Institute for Environmental, Energy and Safety Technology, will eat everything from human waste to coffee grounds and spit out electricity. » 3/01/15 12:00pm 3/01/15 12:00pm

How to Understand These Gorgeous Satellite Data Maps of the Earth

NASA's Earth Observatory has spent over fifteen years using satellites to collect hordes of real-time data across our planet's surface. They reveal everything from temperature and energy use, to how much radiation we beam into space. Here's how to understand satellite data maps to understand our planet's vital signs. » 2/26/15 11:39am 2/26/15 11:39am

Now We Actually Have a Real Reason to Dread Solar Eclipses 

Superstitions have surrounded the eerie solar eclipse since time immemorial. And now, for entirely scientific reasons, it turns out we have good reason to fear them. Earth's biggest solar eclipse since 1999 is happening this March, and it could cause some real disruption—thanks to Europe's reliance on solar energy. » 2/24/15 6:30pm 2/24/15 6:30pm

Apple Just Spent an Incredible Amount of Money on Solar Power

$848 million. That's the amount of cash Apple is spending on what Bloomberg calls "the biggest commercial solar deal EVER." That may seem like a crap ton of money to us, it's still less than a percent of the $178 billion in cash Apple—aka the 55th richest country in the world—has on hand right now. » 2/11/15 4:15pm 2/11/15 4:15pm

What Are Capacitors and Will They Really Charge Your Phone in Seconds?

Your phone died. Again. In these scenarios, who among us has not dreamed the dream of a future where our devices charge instantly and last forever. As capacitors—or even more exciting, ultracapacitors—get better and better at storing energy, they could replace batteries and realize at least one half of that dream. » 2/02/15 12:04pm 2/02/15 12:04pm

An Odd Hypothesis About Bubbles Could Finally Lead to Nuclear Fusion

Nuclear fusion is the dream of energy scientists the world over, because it promises limitless, clean electricity. Most efforts to kickstart the process use high-intensity lasers, insane magnetic fields and super-hot hydrogen plasmas. But there may be a more humble alternative. It's called sonofusion, and it… » 1/30/15 5:45am 1/30/15 5:45am

Deep-Fried Graphene Could Be the Future of Batteries

The wondermaterial graphene could have so many crazy applications: Computer chips that run on light, saltwater electricity generation, and on and on. Perhaps most humble and important of all, though, is energy storage. South Korean scientists have found a way to make pom-pom-shaped graphene microparticles ideal for… » 1/19/15 1:25pm 1/19/15 1:25pm

My Climb to the Top of New York City's Tallest Wind Turbine

New York City is no stranger to wind energy. Just this past year, quite a few small wind turbines popped up on roofs all over the city. But when New York's newest, biggest recycling facility decided to build the waste-munching powerhouse of the future, they weren't going to settle for anything less than the tallest… » 1/15/15 1:10pm 1/15/15 1:10pm

Philadelphia literally burns old money for electricity

What happens to old paper money that's too worn out to be used? It's often recycled and made into everything from dog beds to packing materials. But the Philadelphia Federal Reserve office does something even more unique: They send the old currency to local power plants, where it's burned for electricity. » 12/27/14 3:00pm 12/27/14 3:00pm