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Economic damage of climate change greater than expected

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Published: May 14th, 2024,
Last updated: May 28th, 2025

Until now, economists have assumed that an increase in global temperature of 1 degree Celsius would reduce global production by a maximum of one to three percent. Now there is much more drastic data.

An increase in global temperature by 1 degree Celsius leads to a decrease in global GDP by 12 percent. This is the conclusion reached by the authors of a study on the macroeconomic consequences of climate change. Adrien Bilal from Harvard University and Diego R. Känzig from Northwestern University in the USA examined the effects of global temperature shocks on Gross Domestic Products (GDP).

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