#science #ClimateQuiz

Why one might expect that *not all* the CO2 being produced by humanity (by burning "fossil fuels", "biofuels", "woodfuel", etc) would be reflected directly by an equal rise in atmospheric CO2 content?

#ClimateChange #CarbonCycle #CO2 #gas #chemisty #atmosphere

Because humans inhale some CO2
4%
because CO2 is lighter than oxygen
2%
CO2 can dissolve in water, creating carbonic acid
88%
I don't understand any climate science
6%
Poll ended at .