economy
January 14, 2026
The Climate Question That Economists Cannot Answer
Models can predict catastrophic or modest damages from climate change, but not which of these futures is coming.
TL;DR
- The public discussion of climate change in the US is polarized, with political leaders framing it as either an existential emergency or a distraction.
- Economic studies attempting to quantify future climate damages are limited and often used to support extreme policy positions.
- William Nordhaus's Nobel Prize-winning work, which quantified damages and suggested an 'optimal' emissions path with significant warming, has been cited by opponents of strong climate action.
- Conversely, some groups have relied on studies predicting severe economic impacts to advocate for costly climate policies, even when those studies faced methodological issues or retraction.
- A retracted study from Nature, which projected significant income losses due to climate change, highlights the unreliability of some economic models.
- Many economists advocate for moderate climate policies like carbon taxes and emissions standards, emphasizing a balance between benefits and costs, rather than extreme views.
- Policy makers often seek damage estimates to justify their preferred climate policies, leading to the misuse of economic analysis.
- Quantitative estimates of global damages over centuries are beyond current analytical capabilities, with small assumption changes drastically altering results.
- Experts need to be clearer about the limitations of economic models in quantifying climate damages to foster a more constructive public discourse.
- The uncertainty of climate change impacts means that economists must acknowledge the limitations of their projections and avoid presenting them as precise evidence.
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