Good comment but I believe it contains a typo: "Despite their massive population India produces only 6% of global GHG, or roughly 3 times what Canada produces with a much smaller [should be "larger"] population." As they say, China is the factory to the world, but India is the office.  I saw Thomas Homer-Dixon speak at Carleton University. Someone asked why he mocked Harper and thought the world of Justin Trudeau when Trudeau had just adopted Harper's targets. He replied that he felt  in his inner soul that Trudeau believed in those targets and Harper didn't or words to that effect.