One of the most prominent exponents of the theory was Cyrus Thomas, a noted climatologist who studied the recent history of Colorado, concluding the increase in moisture was permanent, and that it coincided exactly with the first homesteaders.
One of the most prominent exponents of the theory in the United States was Cyrus Thomas, a noted climatologist. He had studied the recent history of Colorado, concluding the increase in moisture was permanent, and that it coincided exactly with the first homesteaders.