Puzzled by UN Climate Change report?

Shut up. They are smarter than you.

The UN's Intergovernmental Panel on Climate Change (IPCC) issued its long awaited pronouncement last Friday in Paris and I am informed by the media that this most definitive of all documents closes the debate on anthropogenic climate change. Now is the time for action, no more discussion will be allowed. I have read the document, and most assuredly it does use uncompromising language ascribing recent global warming to human activity. The science in the document, which I am told was reviewed by 300 eminent scientists, at first sight appears to be impeccable, but I must admit that was a little perturbed to find on page 5 that 0.16 + 0.077 + 0.21 + 0.21 = 0.28 rather than 0.657. I must not fully understand that esoteric form of mathematics known as addition. This level of ignorance on my part clearly shows that I am incapable of judging the merits of the science on my own and I give thanks to the IPCC for taking this burden off my shoulders.