I agree with the posters who are saying that nothing we can do will make any significant impact.
Humans have known for decades that our way of life is detrimental to the planet, but very little has been done to change things.
As humans, our society hinges on profit and power, and we are not capable of changing that.
If someone works in a car manufacturing plant, they might have strong views on eating less meat, etc, but they won't give up their job in protest, because they need the money to feed themselves and their family.
During lockdown we saw photos of clear, unpolluted skies, but did any of the airlines say, 'Great, we can make a difference if we stop all flights?' No, of course they didn't.
Also after lockdown, how many people said they ''needed a holiday?'
I also agree with the posters who say that we are insignificant to the planet and that it will continue quite nicely without us. It's depressing but true.