Humans have little to no effect on the atmospheric CO2, end of story. However, the climate is changing, the planet is boiling, the seas are arising and we will all be dead in ten years if we don’’t start taxing all the rich countries at very high rates and deindustrialize them whilst giving the money to the rich people in the poor countries. Don’t open those curtains because behind them you will see all the volcanos going off and the clouds of stuff coming out of them. That other set of curtains has a bunch of tyrants behind them, so don’t open them, either.