Oh, I was not aware the US is not the only country on Earth.

Snark aside, here's a source that says globally coal power production accounts for 30% of global CO2 emissions. That's a lot, but not quite the whole problem.

https://www.iea.org/geco/emissions/

Actually I agree with you that getting upset over meat eating and plastic straws is a silly way to avoid tackling the much larger issues.

Also, I was genuinely asking for more information, and am still interested.