Why drought didn't cause famine

In Ireland in 1845-1849, late blight wiped out potatoes - almost the only food poor tenant farmers had. But grain and livestock kept being exported from the country for sale the whole time. Historians debate whether the exports would have fed everyone, but the fact itself is telling: food was passing by people who had no money to pay for it.

In Bengal in 1943, estimates put the death toll at 2 to 3 million people. The harvest was worse than usual: a cyclone had swept along the coast the year before, and rice was hit by disease. But not badly enough to explain such losses. Economist Amartya Sen showed that the province had roughly as much rice as in peaceful years. What changed was something else: wartime inflation, panic buying, and prices soaring several times over. Day laborers and artisans could no longer reach the food sitting in the market.

The pattern repeats from case to case. The harvest does not fall to zero, but by a share, yet rumors of shortages push up prices faster than food disappears. What matters next is no longer the amount of grain, but how quickly earnings fall behind prices.

Botswana endured severe droughts in the 1980s without mass famine: the government launched public works and food distribution, so people had money to pay. In those same years, famine struck Sudan and Ethiopia, where aid arrived late. Sen put it bluntly: where there are elections and a free press, mass famine has never occurred - a government that is written about is forced to respond.

This formula has its critics: they debate both what counts as a democracy and whether there was always enough food - in some famines, supplies really did drop noticeably. But the overall pattern holds: drought returns constantly, and it turns into famine where no one is obliged to notice it.