Why Gardeners Swear by Biochar — And How You Can Make Your Own originally appeared on Dengarden. It's possible you've heard of biochar or know someone who uses it, but if you're reading this, then you ...

Minneapolis is on track to become one of the first U.S. cities to invest in biochar, a multifunctional, charcoal-like material said to help grow bigger plants, reduce storm water runoff and remove ...