When the Sky Fell: The Black Blizzards
The "Black Blizzards" of the 1930s were huge dust storms that turned day to night. On May 9, 1934, one storm lifted about 300 million tons of topsoil from Saskatchewan and Alberta, dropping it as far as the Atlantic.
These storms weren't natural. They came from decades of poor farming. Continuous plowing without stopping wind erosion, plus breaking native sod, left soil exposed to constant winds.
The economic damage was brutal. Wheat prices crashed from $1.60 a bushel in 1929 to $0.34 in 1932. With crop failures, many farmers faced bankruptcy and left their land.