Scientists Figured Out a Way to Help Power Homes with Toilet Flushes

A team of researchers in South Korea have a pretty exciting new idea for hydroelectricity. They figured out a way to turn the mechanical energy from flowing water into a sustainable energy source. In other words, your toilet flushes could help power your home. » 4/18/14 6:40pm Yesterday 6:40pm

The Cool Promise of Machines That Run on Body Heat

The human body at rest radiates 100 watts of heat—heat that does nothing other than make crowded rooms stuffy. But body heat can be converted to electricity, and new technology is always improving the process. With the rise of wearables, the body heat-powered device becomes an ever more tantalizing promise. » 4/14/14 1:00pm Monday 1:00pm

Ikea Just Bought a Wind Farm Big Enough To Power All Its U.S. Stores

It takes a lot of energy to keep the lights on as you greedily pile ¢59 kitchen dongles and weird cookies into that blue bag, which is why Ikea is making a push to offset its total energy consumption by 2020. This week, it took a big step towards doing so by buying a wind farm in Illinois. » 4/11/14 5:30pm 4/11/14 5:30pm

13 Unexpected Sources of Energy that Could Save the World

If humans are going to keep living in the style to which we're accustomed, we need to find alternatives for fossil fuels. Partly that's because we need to reduce pollution — and partly because those fossil fuels are going to run out. But alternative forms of energy may look a lot weirder than you think. » 3/31/14 6:11pm 3/31/14 6:11pm

New Interactive Map Explores State of U.S. Solar Power

The Center for Land Use Interpretation, in Culver City, Los Angeles, opened a new exhibition on Friday exploring the contemporary state of solar power in the United States. The show includes extensive photographs of all existing solar power plants in the U.S. southwest, many of which were taken "from the air, using… » 3/10/14 2:20pm 3/10/14 2:20pm

Making Plastic, Fertilizer, and Superglue Out of Thin Air

What to do with an environment-wrecking molecule like carbon dioxide? The gas behind global warming and ocean acidification enjoys a pretty rough reputation these days, but scientists have been working on ingenious ways to put carbon dioxide to good use. A little electricity, it turns out, can transform the waste gas… » 3/06/14 6:00pm 3/06/14 6:00pm

An Unintended Effect of Energy-Efficient Buildings: Toxic Mold

Energy-efficient buildings can be wonderful at keeping out drafts and keeping down heating bills. But the same air-tightness, unfortunately, is also perfect for trapping humid air where toxic mold can go to party. » 2/16/14 1:00pm 2/16/14 1:00pm

Nuclear Fusion Just Got More Energy Out of Its Fuel Than It Put Into It

It's one of science's ultimate goals, and perhaps the only thing that could prevent humanity's ultimate depletion of the Earth's resources — the ability to create more energy than is used to make it. Now, a new nuclear breakthrough has brought that feat even closer to becoming a reality. » 2/13/14 8:00am 2/13/14 8:00am