Well, the non-suspense is over. The US has been withdrawn from the Paris Climate Agreement. My concern is not environmental. Companies want to make money, and will need to keep producing more efficient and less polluting products to attract customers. Customers don’t want to ‘waste’ their money on fossil fuels, so will demand more efficiency. And, climate change aside, anyone who tried to breathe in LA or London in the 80s (or has seen Beijing today) will push for emissions regs.

My concern is the precedent we’ve established regarding military invasion when a country contravenes a treat obligation (be that just neglecting enforcement or withdrawal). An argument can be made that spewing toxic pollutants into the air endangers the lives of your civilian population. And the rest of the world population too. That’s a fairly long-standing American criterion for invading a foreign country.