Climate Central: The months-long wait for El Nio continues: The latest update from the Climate Prediction Center, issued Thursday, finds that conditions still aren't quite in place to declare a full-blown El Nio, though forecasters still expect one to emerge by the fall. If and when it does, it is expected to impact weather and climate across the world and could push 2014 or 2015 to be the hottest year on record.
While the atmospheric characteristics that indicate an El Nio have been evident intermittently,...