The climate niche of Homo Sapiens

Richard Tol

Climatic Change, 2024, vol. 177, issue 6, No 17, 17 pages

Abstract: Abstract The increasing atmospheric concentrations of greenhouse gases will place humans in climates that are unprecedented in the evolution of the species. I use the ecological definition of the human niche in climate space, and combine this with a new constellation of methods from extreme value statistics to study human occupation near the boundaries of that niche. I find that the temperature distribution has a thin tail whereas the tail of precipitation is thick. This thick tail reflects that humans are used to a wide range of rainfall regimes, so future precipitation changes, although leading to unprecedented rainfall, are less likely to pose a major challenge. An increase in temperature, on the other hand, will put hundreds of millions of people in heat that is not just unprecedented and but also hard to imagine from extrapolating current temperatures. These findings are qualitatively similar but an order of magnitude smaller than previous studies.

Keywords: Tail-index; Convex hull; Climate (search for similar items in EconPapers)
Date: 2024
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Working Paper: The climate niche of Homo Sapiens (2023)
Working Paper: The climate niche of Homo Sapiens (2023)
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DOI: 10.1007/s10584-024-03760-z

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