Energy efficient building designs and technologies are everywhere these days. In fact, the sheer number of options can seem a little overwhelming for those interested in sustainable construction techniques. But Southface Energy Institute, headquartered in Atlanta, can be a valuable resource for homeowners, commercial or residential builders, or individuals who simply want to learn more […]
Water is an immediate, fundamental need for human survival, but one in six people worldwide don’t have immediate access to water resources, particularly in arid regions of southern Africa. The HippoRoller is a deceptively efficient water carrier with the potential to offer huge health, economic, and social benefits to developing communities.
Sales of electric bikes have spun into high gear this year — some merchants reporting a 6000% increase in sales. This is good news, because, for short trips, the efficiency and convenience of electric bikes is hard to beat. You may have heard that in the U.S., 40% of all trips are made within two miles […]
I first wrote about these wind micro-wind turbines for TreeHugger in March. Since then the microturbines have become available for sale through the Motorwave website (here’s a direct link to the store). Right now, shipping costs from Hong Kong are about $300, but Lucien Gambarota, the inventor says he hopes to offer the turbines for […]
I first saw the Loopwing wind turbine last year. Lately, the company has been showing it off in trade show across Japan. There’s still no solid data on this turbine, but the design is certain intriguing — I’m keeping my eye on this one. Here’s what the Loopwing website says about the turbine: it’s a […]