COP21 in Paris is about the money. The whole gambit to shelve a climate deal was revealed. It’s simple: the US and developed countries don’t want to pay.
To stop an agreement in its tracks, one need only propose terms that are known to be unacceptable to other parties. Doing so from a moral highground will let you get nothing done and be applauded.
Senate rules encourage obstruction and partisanship. Don’t negotiate without consequences for both sides