laws were passed in capitalist countries to remove it promptly

Promptly on what timescale? Geological?

It's always too little too late. If it wasn't, we wouldn't be in this mess. Reality speaks for itself.

Exxon has known the damage they were causing since at least the 80s and have spent absurd amounts of money alongside their competitors lobbying governments and paying scientists to keep the status quo. We had at least some evidence that burning fossil fuels was going to cause global warming at the turn of the 20th century.

What you're saying isn't entirely false, but it sure is bending over backwards to be nice to the capitalist societies that caused this problem. Also there aren't any communist countries causing this problem, China is every bit as capitalist as the US in how their economy functions these days, they're communist in name only. You've been influenced by capitalist propaganda friend.

During the latest decades they didn't know very well about the damages they were causing

Yea, they (the capitalists) have known full well for at least two decades the damage they were causing.

Holy shit you are delusional if you believe any of that. A simple google search on climate science coverup by fossil fuel companies (like Exxon, Shell, and BP) in the 70's is just a single example and it would take you almost no effort to learn. That you haven't even done the very LEAST you could to not be embarrassingly wrong, should serve to let anyone reading anything you comment on to simply dismiss your ramblings as misleading at best.

You need to take a look in the mirror and ask yourself if maybe you got this wrong since myself and MANY others have pointed out the various things you are just factually incorrect on.

I'm not holding out hope though, I am willing to bet you will just double down in your fantasy instead of facing reality. Feel free to prove me wrong, little would please me more.

There's actually a news article from the March 1912 edition of Popular Mechanics warning about how 'the furnaces of the world' are 'burning about 2,000,000,000 tons of coal a year', and how 'when this is burned, united with oxygen, it adds about 7,000,000,000 tons of carbon dioxide to the atmosphere yearly.' They conclude that adding 7 billion tons of CO2 per year 'make(s) the air a more effective blanket for the earth and raise its temperature' and that 'the effect may be considerable in a few centuries'. Their only mistake was underestimating how much CO2 future generations would put in the atmosphere. They estimated a few centuries for 7 billion tons of CO2. I'm wondering what they'd make of 43 billion tons.

Capitalists ignored the clear warnings from scientists about pumping CO2 into the atmosphere for over a century because it wasn't economical for them to do something about it. It was always somebody else's problem. Until it wasn't. Where do you live? New York, that has recently had some of the worst air quality in history thanks to Canadian wildfires? Or Denver, where it was our turn in April and May? Or when we got the horrible DECEMBER wildfire that burned into Boulder? Man, wildfires in fucking December. NOW it's fashionable for Capitalists to at least pretend to care about the environment, but shit, if there could be a dollar made burning down the last forest, you fucking better believe that capitalists will gleefully play a Captain Planet villain while they do just that.

Edit: A fun link: https://bigthink.com/the-present/1912-climate-change-prediction/