The answer is: what if EVERYONE in the world thought this way?
(Even if only the US carried on regardless, if the REST of humanity does "
the right thing" then we will be helping our grandchildren - and grandchildren everywhere - have nicer lives.)
It depends on how you view things.
If we stop using fossil fuels and the rest of the world don't, then economically, we will be likely worse off and our children and grandchildren will suffer a worse standard of living than we do ( financially and materially) because as a nation we are much less competitive than other countries.
There is a balance to be struck, and we would all like every country to be equally environmentally concerned, but the reality is that is not going to happen.
In some ways its a bit like the argument that we should be a pacifist nation and scrap our armies etc. despite others not doing so.
The big question is how do we bring other nations along the green agenda, and how do we persuade people to reduce / stop their own personal use and consumption of fossil fuels.
For example despite the green agenda, people are taking more holidays abroad than ever before. Albeit, shorter breaks, people are still flying more each year, even if not every trip is abroad. Unless they are cycling or walking to their destinations, then they are probably using using fossil fuels to get to their destinations
This above being a direct a quote from ABTA
https://tinyurl.com/29coqtgo
People may well support the green agenda, until it comes to doing things that affect their lifestyle I'm not sure how you persuade people to act to their own detriment when others ignore this