Residents of the Global North may be justly wringing their hands about flooding, droughts, and freak weather, but the most worrying effects of climate change are expected to hit the countries of the Global South, especially those in the broad regions on either side of the equator. Christian Parenti has reported from that vast area and discusses the shape that climate-related social dislocation is already taking, as well as the militarized plans of the rich countries to keep poor climate refugees out.