New York Times: El Nio is coming. Above-average sea surface temperatures have developed off the west coast of South America and seem poised to grow into a full-fledged El Nio event, in which unusually warm water temperatures spread across the equatorial East Pacific. Models indicate a 75 percent chance of El Nio this fall, which could bring devastating droughts to Australia or heavy rains to the southern United States. The debate over climate change, however, brings additional significance to this round of El...