By my reckoning it was "game over" when Reagan was elected. That was our last chance to get population growth and industrial output under control.
Reagan made it mandatory that the US contributions to the UN and to every other global initiative come with one string attached - no funding for or mention of birth control or family planning.
Reagan tore down Carter's solar panels and told Americans to consume like it was our birthright.
It had just been discovered the previous decade that the rise in CO2 in the armosphere was exponential, not linear as it had previously been believed. And many prescient scientists were sounding the warning.
Already one out of eight human deaths globally is attributed to pollution, which is going to cause the death of us all, as it clogs our lungs, poisons our food and water, heats the atmosphere and unleashes droughts and floods unlike anything we've ever seen.
It's time to make our peace with it.