Using greenhouse gas emission predictions, the report estimates the annual damages to traditional markets alone will be $1.66 trillion by 2100.
The study, which began in 2021, brought together scientists from multiple disciplines: Fisheries experts, coral reef researchers, biologists and climate economists. They assessed downstream climate change costs across four key sectors—corals, mangroves, fisheries, and seaports—measuring everything from straightforward market loss of reduced fisheries and marine trade to reductions in ocean-based recreational industries.
Researchers also placed a monetary figure on what economists call non-use values. “Something has value because it makes the world feel more livable, meaningful, or worth protecting, even if we never directly use it,” said Bastien-Olvera,
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