Acid rain is not caused by CO2 but by pollutants (such as SO2 and NO) which may also come from coal burning.
Even if CO2 were implicated, this issue has absolutely zero to do with the theory of catastrophic anthropogenic global warming.
Even if CO2 were implicated, this issue has absolutely zero to do with the theory of catastrophic anthropogenic global warming.
So anthropogenic CO2 (we know it's anthropogenic because of satellite measurements showing seasonal variations around population centers) caused anthropogenic climate change. Even if an unknown effect serves to counteract the massive greenhouse effect of all of our CO2, temperature is only one effect of climate change. There is also changing ocean currents due to meltwater changing salinity and temperature of the ocean, shifting of precipitation to other regions creating droughts and floods, the aforementioned acidification, etc.