Breaking the cycle of drought
Life in Africa's Sahel region is precarious. There is little biodiversity, annual crops offer a meager harvest, and when the rains don't come famine does. But there is a way to break this cycle.
Agriculture in Havana
The Cuban food-production system supplies only 16 percent of the average Cuban's diet. Yet due to dire necessity, Cubans are moving toward a more sustainable agriculture.
Sharing horticultural skills with the world
On the flight into Fort Myers, Florida, I looked down on a vast, oil-driven network of fast-food chains, malls and suburbs, little fiefdoms of fancy destined for ruin in the low-carbon future.