Thankfully nobody will ever fight a war of pollution externalizations. Over resources, yes, pollution, no. Economic calamity if pollution directly affects som

Thankfully nobody will ever fight a war of pollution externalizations. Over resources, yes, pollution, no. Economic calamity if pollution directly affects some nation, possibly. Not even as part of an escalation. A war requires a lot of vested interests to 'care' add to that mechanisms for populism. 'ABC is polluting' is not enough of anything. Also, non-market forces that care the most about things like pollution, are the one's that are also least likely to want war, or to put those kinds of cards on the table.