El Niño-Southern Oscillation

Esnart Chongani boils five small pumpkins over firewood outside her home in Makoka, a village in Zambia’s Chongwe District, not far from the capital, Lusaka. She tests to make sure they’re tender, drains the water, which she will save for later, and then carefully divides them into 12 portions as her family sits down for lunch. It’s a healthy dish, but there’s scarcely enough to go around, and this is the only meal any of them will eat today. Chongani, 76, isn’t used to rationing. She’s the proud owner of a seven-acre farm that she has worked on for decades. Ordinarily, her family harvests more than two tons of maize in April. But this year, southern Africa was hit by its worst mid-season dry spell in over a century, and for the first time in her life, they have harvested nothing. “I cannot remember anything like this,” says Chongani. “People are so hungry they are stealing food. The generosity o...