How the Earth is getting both colder and warmer at the same time defies reality, but that is of little concern to Dr. Holdren As January 2014 arrived with a blast of cold air ominously dubbed the “polar vortex”, the White House released a video in which the Chief Science Advisor to President Obama, Dr. John Holdren, managed to get on both sides of it, declaring the “extreme cold” to be “a pattern that we expect to see with increasing frequency as global warming continues.” How the Earth is getting both colder and warmer at the same time defies reality,...