Image by Michael Dawes via Flickr It is tempting to think the dust storm that enveloped eastern Australia last month — choking Sydney with an estimated 5,000 tons of orange dust — is an anom... Read more
Dominant theory says that desertification is caused by overgrazing. Operation Hope, winner of the 2010 Buckminster Fuller Challenge, has upended this idea—restoring degraded African grasslan... Read more