It'll happen the moment you accept a new nuclear power plant down by your local Walmart and all Walmart items being required to participate in a company buyback program for clean/safe disposal and recycle as is done for batteries and tires. It'll happen whenever you accept the necessity of waiting for the bus and permitting construction of a railroad, truck terminal and auto wrecker near your local Caddilac dealership.

I'm being facetious but you get the idea. The sorts of compromises required are too much for the average person to accept. By the time it does matter, people will just accept that birds went extinct, that gardens can't be made without special chemicals, or that rain is toxic. The sort of world where standing outside for more than 20 minutes is dangerous due to ozone depletion and reproduction requires special drugs to offset microplastics in breast milk. This is already happening in parts of the US and they are begging Trump to take america back, build the wall, and stop the liberals from taking away plastic bags.