[cuongt]

can somebody give me some reasons to how indicate that the concentration of CO2 in the atmosphere is increasing.


all i know is the things that give out CO2 e.g. aerobic respiration.

how can you indicate that concentration of CO2 in atmosphere is increasing?

[constant thinker]

You could always take air samples over a period of time, probably a long period, and find out how the concetration is changing.

Also remember that when you burn gasoline or fossil fuels you are releasing CO2 and a few other things. Just think about how much gas and fossil fuels  are burnt daily. Also deforestation takes away the trees that would take in a lot of the CO2 in the air.

[cuongt]

thanks a lot  

just wondering if combustion of fuels is one?