" Rain follows the plow: that was the spurious premise behind such claims, put forward by successive presidents of the Union Pacific Railroad and at least one employee of Powell’s own agency.28 Powell’s report had refuted it, arguing that there was no scientific evidence for it.29 But climate falsifiers argued that a wet period during Dakota’s boom years proved the connection. Congress believed them, and the quack theory supplied a rationale for the Timber Culture Act. By reducing wind, trees were supposed to produce rain. "

― Caroline Fraser , Prairie Fires: The American Dreams of Laura Ingalls Wilder