Researchers say that adding charcoal to soil may provide more benefits for long-term soil quality than compost or manure. It could also be used to sequester carbon captured from carbon dioxide emissions. Mingxin Guo discusses new applications for the technique, used more than 1,500 years ago in the Amazon basin.

Related NPR Stories

Web Resources

'Black gold agriculture' may revolutionize farming, curb global warming Discover: 'Black Gold of the Amazon' Environmental Science and Technology: 'Rethinking Biochar'

ncG1vNJzZmivp6x7r7zRZ6arn19nfXGEjmlraGlhZIV6gZVrbHJsX5i1or7CqJilZZ2Wxm60xKWnZqGdpb%2BwwsRmqqihnGK%2Btq3Loquy