isnt that what the video is saying, overpopulation is the main cause but it's never addressed ? its some other reason, like rich white gammons flying around the world.
i couldnt give a f**k about greta, the planet will be fine, once we've fucked ourselves mother earth will be able to get her house in order, may take a while, but it will get there eventually.
https://www.livescience.com/earth-without-people.html