The phrase 'which dollar spent on either does more good at the margin' suggests that the author wants
Debates about climate change are sometimes framed as a contest between cutting emissions and adapting to a warmer world. Advocates of adaptation say that it is practical: sea walls, drought-resistant crops and better early warnings help real people now. Advocates of prevention say that adapting without cutting emissions merely postpones the problem. Each is right about the other's weakness and wrong about its own indispensability. Adaptation cannot cope with unlimited warming; some changes, such as the loss of coral reefs, cannot be adapted to at all. But prevention will not undo the warming that is already locked in. A sensible policy treats the two as complements, with attention to which dollar spent on either does more good at the margin.
Answer and explanation
Correct answer: C. spending to be directed to wherever the next unit of money produces the greatest benefit
- Step 1: 'At the margin' means for the next unit of spending.
- Step 2: The author wants money allocated by marginal benefit, not by fixed shares.
Answer
spending to be directed to wherever the next unit of money produces the greatest benefit.
Why not the others: An equal split, restriction to poor countries, postponement and a single body are not suggested.
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