Here's the thing. The environment is much cleaner than it was in the 1960s. Cleaner air, cleaner water, more forests, the biggest villain has been the explosion of plastics (which do come from fossil fuels) especially in the oceans.
Every year internal combustion engines get more efficient and cleaner. The same is true of power plants, at least in the USA. That is where most of the environmantal clean up comes from. Solar, wind, renewables, don't really make much difference. Driving a Tesla does virtually nothing.
China builds two dirty coal fired power plants a week, India builds one. In the third world some places are still cooking and heating with dung. If you want to meaningfully improve the environment you have to change behavior in China.
