Iowa, with its thirty odd inches of annual rainfall, is at the present time well within the garden tracts of Earth. Today we are really living in the middle of an interglacial epoch which does not yet reach its arid zenith. Were we not fully cognizant of this circumstance, and were we not looking for some first traces of such climatic transmutations, as in childhood we hunt for four-leaved clover, the clues might easily escape notice. Being on the alert, however, smallest signs are replete with deepest significance. It thus happens that our future desert conditions are already in sight, faintly though they be on the horizon.
Proceedings of the Iowa Academy of Science
©1924 Iowa Academy of Science, Inc.
"Beginnings of Desert in Iowa,"
Proceedings of the Iowa Academy of Science, 31(1), 332-333.
Available at: https://scholarworks.uni.edu/pias/vol31/iss1/95