“It’s a fraud really, a fake,” said James Hansen, the former NASA scientist who has been called the father of climate change awareness

“It’s just worthless words. There is no action, just promises. As long as fossil fuels appear to be the cheapest fuels out there, they will be continued to be burned.”

"He’s right, and the negotiators must surely know it. 

The Paris summit: A colossal waste of time - Margaret Wente - Globe and Mail - Dec 16, 2015