Dust Bowl

The 1930s Dust Bowl is the US soil-erosion case. Deep ploughing of prairie, drought, and strong winds. Rain splash and rill were not the headline; wind was. Without vegetation, the A horizon had no anchor. Black blizzards moved soil across state lines. The soil-erosion lab’s vegetation toggle is this sentence.

Aeolian landforms — yardangs, barchans — are the world-example kit, not a Great Plains default. On the plains the process was deflation and transport of farmed silt and sand, not a desert textbook dune field. Keep the landform names honest.

UK pair: peaty upland erosion and blown sand on some coasts, at a smaller scale. The physics of an unsheltered particle is the same. The history is American.

Do not invent tonnages. USDA and NOAA historical summaries are the sources. The teaching point is land use plus climate plus wind, not a morality play.