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2. From March 2017 to March 2019 the atmosphere CO2 went from about 407ppm to 415.5ppm. What is the average increase in CO2 for those two years?

Climate Change Activity Climate Change and the Spread of Disease Vectors Is there global warming? Bellevue College meteorolog
Latest Co, reading 406.92 ppm March 18, 2017 Carbon dioxide concentration at Mauna Loa Observatory ng 1, 2017 CI co, Concentr

3. Based on question 2, how many years before we reach 450ppm?
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Answer #1

2.
From March 2017 to March 2019 the atmosphere CO2 went from about 407ppm to 415.5ppm. So, the rise in the concentration of CO2 is 415.5 - 407 = 8.5 ppm
The average rise per year is 8.5 / 2 = 4.25
3.
450 - 415.5 = 34.5
The years of time that is needed to reach the concentration of CO2 of another 34.5 ppm or to 450 ppm level is =34.5 / 4.25, since the average rise in the concentration of CO2 is 4.25 ppm
It is the period of 8.11764 years.

So before next 9 years of completion, we will reach '450 ppm' concentration of CO2.

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