We say 5 degrees, you say 3 degrees! Let's call the whole thing off!
Why are some respected climate journalists spinning the yarn that there's now cause for optimism because (they say - no science backs this up) we're headed for a three rather than a five degree Celcius global temperature increase? We've got a few answers for you, and the movie Network provided at least one: "The world is a business, Mr. Beale. And I have chosen you, Mr. Beale, to preach this evangel."