Montreal Gazette: Each new bit of scientific data makes it clearer that we’re running out of time to take action on climate change. So the question is: Are we at the beginning of a global revolution or the beginning of the end? It begs a speedy answer. A deadline looms. – – – As representatives from 192 nations begin their second round of climate change talks, there is growing concern that the task of setting new targets to reduce greenhouse gas emissions is simply too onerous, despite …