America’s Era of Climate Mass Migration to Higher Ground Is Here 0918.rtf - US will have 13 million refugees from south Florida. The economies of the Southern states, plus parts of the West, will suffer disproportionately as temperatures rise. The poorest 1/3 of counties are expected to lose up to 20% of their income, unless greenhouse gas emissions are severely curtailed. Sea level rise and plain heat, plus crop failure, will be factors in the internal US migrations to come.What Will Climate Change Do to the U.S.-Mexico Border? 0918.rtf - For example, desertification of much of Honduras drives emigration to the US. Discussion of development of fortress state along southern US border.