But we do not know - with a high degree of certainty, what, if anything will happen (if anything) sometime in the future.
Which is why nobody here will state a fearmongering prediction - or the date when (whatever?) catastrophe (if any) may (may) occur sometime in the future.
I will accept a bet on a specific prediction and a time that the given C02 related catastrophe will occur - so shoot!
Meanwhile - is there any evidence that C02 reduction measures (costing $billions/trillions) thus far have, or will reduce global temperature levels?
It is a pointless and ineffective bottomless pit of wasted taxation for zero gain - correct?
We have a very good idea. Increased levels of CO2 cause increased radiative forcing, which increases the the amount of energy in the earth surface layers - particularly the atmosphere and the oceans.
Warmer temperatures result in ice melts, and sea level rises, and changed to seasonal rainfall, and an increase in extreme weather events.
A catastrophe is unlikely to happen in our lifetime, but some people think it's possible. But things
will get worse. hurricanes will get more frequent and powerful. The arctic sea ice will melt. Methane has the potential to be a major problem.
A bet would be hard, because the effects are creeping and hard to attribute with normal variability, so we would need a long timeframe. I'd bet $100 on a significant rise in extreme (and very expensive) weather events worldwide in the next 10 years.
Are you aware that once CO2 is in the atmosphere, it stays there for a long time. So if we keep going (increasing CO2 emissions) until there is a problem, then cutting CO2 down to zero when there is a problem will A) not work, and B) be even more expensive than cutting it now.
So what you are basically say is: "Maybe billions will die and civilization will collapse if we do nothing, and most scientist say they will, but because it's going to cost us 1% of GDP to prevent it, we should just wait and see"
You're betting some money against a likely and avoidable massive change to the planet. "Wait and see" is a terrible choice, because then it will be too late. You can't turn back the tide when it's ten feet higher.