Discussion Forum : Our Environment
Question - Current concentration of CO2 in atmosphere is:
Options:
A .  270 ppmv
B .  350 ppmv
C .  430 ppmv
D .  500 ppmv
Answer: Option C
:
C
430 ppmv is thecurrent concentration of CO2in atmosphere.The global concentration of carbon dioxide in the atmosphere – the primary driver of recent climate change – has reached over 400 parts per million (ppm) for the first timethis year.The safe level of carbon dioxide in the atmosphere is 350 parts per million.
Current Concentration Of CO2 in Atmosphere Is:

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