Learn to use echolocation to help you "see" in the dark -- an incredibly useful skill whether you're in an off-grid situation or in a true emergency.

Cold brew coffee is the smoothest, most delicious coffee you'll ever taste -- no fuel required!

These 12 methods to conserve water and electricity, even in an apartment, will save you money and make your life more sustainable.

Can you heat your house with junk mail? Build this super-efficient rocket mass heater, and you just might!

Friends who share your beliefs can help you stay on track when your quest for sustainability gets tough. Here's how to find your #SustainabilityCrew.