Most important part to me: "Last year a report for the World Bank, the first to model migration due to climate change on a large scale, estimated that as many as 143 million people in sub-Saharan Africa, South Asia, and Latin America could have to relocate within their countries by 2050."<p>As with most models predicting widespread human problems due to climate change, this one is predicting the largest negative impacts on equatorial, mostly poor countries. As usual, rich countries will mostly do alright for some time.