So what should we do?
Make non-compliance painful enough, and the defectors will fall in line.
Maybe they don't, or maybe in the end that's all too little too late, which is why I'd suggest adding adaptation initiatives to your list.
It will never happen, because collectively we don't believe the cost of climate change is greater than the cost of leveling the landscape of incentives to reduce emissions + reducing emissions. The US could unilaterally leverage its remaining military lead to enact global change.
That is fascinating to me. We know the Paris accord cannot work without enforcement. It is economically disadvantageous to go first. As I said, it will never happen. We don't take the threat seriously, we don't believe it is an existential threat.
Saudi Arabia, Russia, Canada, China, Iraq, United Arab Emirates, Brazil, Iran, Kuwait
"including high polluters such as China, the US, India, Russia, Japan, Germany, South Korea, Iran, Saudi Arabia, Canada, Indonesia and Mexico, which generate more than half the world's greenhouse gas emissions, will somehow drive down their carbon pollution voluntarily and assiduously without any binding enforcement mechanism"
What is the binding enforcement mechanism?