This Just In
City Sand Tower would power 192 acres with solar and geothermal energy.
A biogas reactor that transforms human waste into energy could supply free methane to local villagers.
Here are 10 innovations working hard to make Earth a cleaner, healthier, more sustainable place to live.
Moisture farming sounds promising but may not be the best tech for California.
An electric bicycle you don't have to plug in.
As solar power gets more affordable, we're finding it all the right places.
Low-cost design could help farmers in Ethiopia maintain self-sufficient agriculture.
Growing plants indoors in psychedelic hydroponic conditions consumes less energy, space and water than growing them in fields outside.
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