So what is your evidence that 1. CO2 is dangerous (considering you breathe out 400x what you breathe in,  and you're still alive), and 2. CO2 is the dominant driver of global temperature, or indeed has any effect? Do you understand the laws of thermodynamics & conservation of energy?  Have you done the experiments or measurements over the past few thousand years to find out if CO2 really drives temperature (hint: CO2 lags temp on all timescales - cause & effect)?  Further, considering global temperatures have risen and fallen throughout geological history,  i.e. over hundreds of millions of years,  what is the 'ideal' temperature,  for a. you, b. a Saharan desert dweller, and c. an Eskimo?