A retired Los Angeles County firefighter has developed the Heli-Hydrant - a small, open tank that can be located in urban areas to give helicopters a much closer water source.

HomeBiogas and the US Air Force turn waste into clean energy with Bio-Toilets, tackling off-grid sanitation, emissions and energy needs in remote locations ...

Three years ago, Ted Treadwell turned his water heater into a battery. His home in Santa Rosa, California, had relied on a ...

Getting ready for backyard entertaining? An Amazon fire pit can be the key to transforming your outdoor space into one of ...

Over Memorial Day weekend, we diligently kept tabs on all the on-sale items that HuffPost readers snatched up the quickest.