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Using your two values, about how much did the average level of CO2 in the atmosp

ID: 231775 • Letter: U

Question

Using your two values, about how much did the average level of CO2 in the atmosphere at Mauna Loa change between 1958 and 2014?

The figure below shows the record of monthly-averaged and seasonally-adjusted atmospheric carbon dioxide (CO2) gas concentrations measured at the Mauna Loa Observatory in Hawaii beginning in 1958 and ending in 2014. Answer the questions below pertaining to these measurements. You might want to have a simple calculator available to help you with these questions.

Using your two values, about how much did the average level of CO2 in the atmosphere at Mauna Loa change between 1958 and 2014?

Explanation / Answer

Co2 concentration during 1958 is 315ppm

Co2 concentration during 2014 is 399ppm

So the average level of CO2 in the atmosphere at Mauna Loa between 1958 and 2014 = 357ppm