Is global warming so bad?

Trying to distract myself from the polar vortex and wondering what a bipolar vortex must be like, I found myself listening to what Newt Gingrich has to say about climate change.  He suggests that fretting about global warming is a form of hubris and insists that “life was fine” in those hazy, lazy days of the Jurassic age.  It must be cerebral frostbite, but I find the opinion appealing.