Global warming activists have seized upon a study purporting to link temperature changes to mass migration from the third world to Europe, in an apparent attempt to attack the Trump administration. Schlenker’s study found that temperature changes from the “climatic optimum” of 68 degrees Fahrenheit led to an increase in asylum seekers from 103 poor countries to Europe. Briggs noted that Schlenker’s study found asylum applications also increased when temperatures in home countries decreased from the “climatic optimum.”