Like, let's say I have a slam dunk case that my $1000 tree died due to climate change. I have the receipts, documentation, everything (unrealistic as it is). How would I go around recovering the damages I'm owed? Who would figure out that "Ted there who drove to work for the last 20 years contributed $0.0001 of your damages. The concrete plant over there contributed $0.001. The coal plant $0.01".
I'll also point out you did not address the rolling coal problem.