Also switch your electricity supplier to one that uses wind or solar

Only the ones that don’t know that China and India are the major polluters becuase they’re industrializing right now and also have half the worlds population

LOL

There's so much that is easy to fix, but won't be fixed, because of greed. The reason cows emit so much methane is due to the corn based feed they are fed. It's possible to keep eating beef, but the people who profit from corn won't have it. In China and India, that industrialisation can be done responsibly if the people who run the factories were more responsible. The companies in places other than India and China profit hugely over the irresponsible manufacturing of goods by purchasing and selling goods bought ridiculously cheap.

That's partly true
The trouble with "going green" in terms of power sources is that it will hit the 3rd world countries the hardest
Coal, gas, and petroleum are playing their part in lifting literally millions out of poverty in those countries (mostly in Africa)
So if we eliminated those "dirty" power sources, we'd also hugely impede the improvements in the quality and safety of life for millions
Unfortunately, solving these things is nowhere even remotely as simple as the likes of Greta Thunberg et al would like you to believe