11 - Koldioxidhalt (ppm)

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CO2-mätningar har pågått sedan 1958 på Hawaii på ön Big Island, på sluttningarna av vulkanen Mauna Loa. De startades av Charles Keeling har ge namn åt den berömda kurvan som är resultatet av hans arbete och som visar säsongsvariationerna i CO2-koncentration i atmosfären. Men trots denna säsongsvariation tog det honom bara två år att visa att den globala CO2-koncentration ökade[1].


  1. _history.aip.org/climate/co2 ↩︎

1
Cause

Kolsänkor

Koldioxidhalt (ppm)

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


1
Consequence

Koldioxidhalt (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

Koldioxidhalt (ppm)

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


2
Wrong consequences

Kolsänkor

Koldioxidhalt (ppm)

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


Koldioxidhalt (ppm)

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