The top five greenhouse gas-emitting nations–the U.S., China, Russia, Brazil and India–collectively caused $6 trillion in global economic losses between 1990 and 2014, according to a recent study of available data. These losses have not been felt equally. Climate scientists at Dartmouth College, Justin S. Mankin and Justin W. Callahan used climate models to calculate how much of the planet’s warming can be attributed each country’s emission and what that has cost every country. The scientists found that the global average temperature rose was linked to the warming in each country (because some regions of the world are heating faster than others), and then to the change in the country’s gross domestic products. Callahan states that the compounding inequalities were a striking feature of the results. Wealthier countries used more fossil fuels to drive their economic growth, while low-income countries, which are already less able adapt to changing climates, suffered the brunt.
See How Much Climate Change Has Cost Different Countries
Low-income nations bear the brunt of costs from climate change
This article was originally published with the title “The Cost of Climate Change” in Scientific American 327, 5, 88 (November 2022)
doi: 10. 1038/scientificamerican1122-88
ABOUT THE AUTHOR(S)
Andrea Thompson, an associate editor at Scientific American, covers sustainability. Follow Andrea Thompson on Twitter Credit: Nick
The author of 5 books, 3 of which are New York Times bestsellers. I’ve been published in more than 100 newspapers and magazines and am a frequent commentator on NPR.