11 - Concentration of CO2 (ppm)

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11 Source: IPCC 1,100 ppm 280 ppm 400 ppm 415 ppm Concentration of CO 2
Set 2 www.climatefresk.org 11 About half of CO 2 emissions are captured by natural carbon sinks. The other half remains in the atmosphere. The concentration of CO 2 in the air has increased from 280 to 415 ppm (parts per million) over the past 150 years. This is higher than at any point over the last three million years.
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1
Cause

Carbon Sinks

Carbon Sinks

the card n11 represents the concentration in CO2, understood in the atmosphere (it's written behind the card).

1
Consequence

Additional Greenhouse Effect

Concentration of CO2 (ppm)

You can recognize the molecules of the different GHGs on the card 13 : H2O (red and white), CO2 (grey and red), CH4 (grey and white), nitrious (blue and red).

1
Wrong cause

CO2 Emissions

CO2 Emissions

Why not, but better link card 12 (Carbon sinks) to card 11. Card 12 is meant for that.

2
Wrong consequences

Carbon Sinks

Concentration of CO2 (ppm)

It can be argued that CO2 emissions take place before reaching carbon sinks. But the opposite link has our preference.
Ocean Acidification

Concentration of CO2 (ppm)

Players often identify CO2 concentration as a cause for ocean acidification. But it is more logical to link back to carbon sinks.
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