IB ESS HL 2.3.11 Alleviating Carbon-Cycle Impacts Question Bank

Evaluate strategies that reduce carbon-cycle disruption and atmospheric carbon dioxide.

Exam points

identify the relevant store, flow or process
trace matter through the biogeochemical cycle
evaluate the ecological or climate consequence of the change

[Maximum number: 1]

Figure Carbon cycle

Outline one method to mitigate the effects of atmospheric carbon storage.

a. reforestation/afforestation initiatives so that more carbon can be absorbed;
b. carbon capture and storage/CCS to bury $\mathrm{CO}_{2}$ underground;
c. land use change/urban renewal leading to revegetation/green roofs to absorb $\mathrm{CO}_{2}$ ;
d. switch to renewable energy to reduce use of fossil fuels;

Note: There are multiple acceptable responses to this question i.e. any process that reduces release of $\mathrm{CO}_{2}$ or absorbs $\mathrm{CO}_{2}$ from atmosphere NB This is an "outline" question, not "identify", so requires a little more than "reforestation" (i.e. WHY reforestation?) or "reduce use of fossil fuels" (...need to state HOW fossil fuel use might be reduced),

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2.3.11—Alleviating carbon cycle impacts question 1