The great unraveling seemed to be caused by man, Bennett believed. How could it be that people had farmed the same ground for centuries in other countries and not lost the soil, while Americans had been on the land barely a generation and had stripped it of its life-giving layers? “Of all the countries in the world, we Americans have been the greatest destroyers of land of any race of people barbaric or civilized,” Bennett said in a speech at the start of the dust storms. What was happening, he said, was “sinister,” a symptom of “our stupendous ignorance.”

