Is Migration-Induced Warming Greater than the Physical Greenhouse Effect?

Studies of the greenhouse effect have generally concentrated on its size and effect on terrestrial ecosystems, treating human population distribution as a constant. However, these distributions can change, producing temperature effects on humans comparable to those expected for global climate. In the united States from 1960 to 2010, internal migrations have and will produce a temperature increase on humans of about 1.1 C, a rate of temperature increase about four times that of Northern Hemisphere warming in the last century.