claim: Temperatures in the Southwest increased by nearly two degrees Fahrenheit ( one degree Celsius ) from 1901 to 2010, and some climate models forecast a total rise of six degrees or more by the end of this century.
evidence: A projected increase of 4.05 degrees Fahrenheit in average temperature is expected by 2065, and a projected increase of 9.37 degrees Fahrenheit in average temperature can be expected by the turn of the century if nothing is done to curb emissions.