Sorry, they why do you have to BELIEVE that CO2 raises temperature at these low, low, low, low levels?
Is 32 Beeeeelllllllion supposed to be a big and scary number? What's the weight of Earth's atmosphere? Any guesses?
5.5 Quadrillion tons
Allow me to suggest some pertinent questions:
What is the weight of all the CO2 in the atmosphere?
What is the weight of all the CO2 emitted by humans since 1850?