If the world cares about pollution then we wouldn't have CO2 problems in the first place.
This is false - "the world", down to our average budget constrained consumers, very much cares about pollution: air pollution, water pollution, radioactive pollution, sound pollution and even ordinary litter on streets are hot topics people care about - because those can be directly experienced first hand. There's even an acronym for the phenomenon and its negative effects on industrial expansion: NIMBY, Not In My Back Yard.
The problem with CO₂ is that it is an odorless and colorless gas that is damaging even in very small concentrations, and that the damage is delayed. So the 'back yard' is our atmosphere, and this delayed effect makes it easy to lie about CO₂ in an effort to sell CO₂ polluting products for profits without paying for the inevitable damage clean-up down the road...
What's done is done and we have already passed the tipping point.
There's no binary 'tipping point' - our only planet's climate is an incredibly complex machinery that is only partly understood. But one thing we know for sure: doubling the size of its planetary scale natural heat mirror in the last 200 years (CO₂ levels going from 200 ppm to 400+ ppm today) has already warmed up the planet and will cause more warming.
That thickening the planet's heat mirror would warm it was already obvious and clear 100+ years ago, to quote a 1912 newspaper article:
There's no argument about this in the scientific community, and every single 'skeptical' argument you've seen trying to cast doubt on the fact that a double size heat mirror is warming the planet is a lie.
To quote a secret, recently acquired and published Exxon Mobil chart from 1982, 37 years ago their scientists predicted rising CO₂ levels to about 415 ppm and raise temperatures by about +0.9°C in 2019:
This year we crossed both milestones - remarkably accurate prediction by the oil industry, hidden from the public.
But we don't know
exactly how it's going to go down from now on, there's wide error bars, high levels of uncertainty, and the levels of degree of our "global scorching" of our only habitable planet matter: 2°C or 3°C makes a huge economic difference, 3°C or 7°C makes a catastrophic difference.
CO₂ pollution is also largely reversible if we ignore acidification of the oceans and the probably inevitable melting of all ice: about ~2.5% of atmospheric CO₂ is absorbed by the oceans every year. I.e. absent human emissions the natural rate of CO₂ reduction would be an about 10 ppm reduction every year, until it gets closer to the long term historic equilibrium of ~200 ppm.
Put differently: human industry emits about +12 ppm worth of CO₂ every year, while natural processes are reducing it by about -10 ppm. If only we reduce emissions (very broadly) to below 10 ppm we'll have stopped and even reversed the build-up of the planetary scale heat mirror.
So yes, it's not too late, yes, every little bit helps, and yes, the sooner we fix CO₂ emissions the lower the body count gets: 1 billion deaths or only 100 million deaths from global warming, it makes a big difference to 900 million people and the rest of the planet who cares about them ...
