The plot below shows three different projection scenarios for atmospheric CO2 concentration in the 21st century from the 2018 IPCC (Intergovernmental Panel on Climate Change) report. The red line represents the RCP 8.5 projection, also known as the "business as usual" projection. This projection assumes that no effort is made to curtail emissions of CO2. IPCC Representative Concentration Pathways CO2-equivalent (ppm) 1200 1000 800 600 400 RCP8.5 RCP6.0 RCP4.5 RCP2.6 2000 2020 2040 2060 2080 2100

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter8: Properties Of Gases
Section: Chapter Questions
Problem 86QRT: Name a favorable effect of the global increase of CO2 in the atmosphere.
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Based upon this “business as usual” projection, approximately how many Gt of CO2 would be added to the atmosphere by 2100 relative to today? (Current mixing ratio of CO2 is 424 ppmv, mass of the atmosphere is 5.15´10­21 g).

The plot below shows three different projection scenarios for atmospheric CO2
concentration in the 21st century from the 2018 IPCC (Intergovernmental Panel on
Climate Change) report. The red line represents the RCP 8.5 projection, also known as
the "business as usual" projection. This projection assumes that no effort is made to
curtail emissions of CO2.
IPCC Representative Concentration Pathways
CO2-equivalent (ppm)
1200
1000
800
600
400
RCP8.5
RCP6.0
RCP4.5
RCP2.6
2000 2020 2040 2060 2080 2100
Transcribed Image Text:The plot below shows three different projection scenarios for atmospheric CO2 concentration in the 21st century from the 2018 IPCC (Intergovernmental Panel on Climate Change) report. The red line represents the RCP 8.5 projection, also known as the "business as usual" projection. This projection assumes that no effort is made to curtail emissions of CO2. IPCC Representative Concentration Pathways CO2-equivalent (ppm) 1200 1000 800 600 400 RCP8.5 RCP6.0 RCP4.5 RCP2.6 2000 2020 2040 2060 2080 2100
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