Global fish stocks can’t rebuild if nothing done to halt climate change and overfishing

Global fish stocks will not be able to recover to sustainable levels without strong actions to mitigate climate change, a new study has projected. Researchers projected the impact that different global temperature increases and ranges of fishing activity would have on biomass, or the amount of fish by weight in a given area, from 1950 to 2100. Their simulations suggest that climate change has reduced fish stocks in 103 of 226 marine regions studied, including Canada, from their historical levels. These stocks will struggle to rebuild their numbers under projected global warming levels in the 21st century.Global fish stocks will not be able to recover to sustainable levels without strong actions to mitigate climate change, a new study has projected. Researchers projected the impact that different global temperature increases and ranges of fishing activity would have on biomass, or the amount of fish by weight in a given area, from 1950 to 2100. Their simulations suggest that climate change has reduced fish stocks in 103 of 226 marine regions studied, including Canada, from their historical levels. These stocks will struggle to rebuild their numbers under projected global warming levels in the 21st century.

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