There is no real world evidence that human-produced CO2 causes any measureable amount of climate change.
If you think there is evidence, then post it.
Models of climate, which are only hypotheses, so far, do not validate when compared to real world conditions. Until they have a reproducible model which produces accurate forecasts, understanding of climate will remain incomplete and unworthy of the fear and money drummed up for it.
Furthermore, we know from years of science that more CO2 is healthy for plants and we know that atmospheric CO2 is THE ONLY mechanism by which carbon enters the food change for all life on this planet. Even further, we know that life in the past has been very abundant and growing when temperatures have been much warmer.
Human-caused climate change/global warming is a fraud. Scientists are now backing away from it so they do not end up being blamed, as they will be, by politicians and NGO’s. In the scientific literature, the amount of warming projected has been declining for years.