Sea snails weaken as carbon dioxide makes Antarctic waters more acidic
The shells of some marine snails are dissolving as the seas around Antarctica become more acidic, threatening the food chain, according to a study published in the journal Nature Geoscience.
Oceans soak up about a quarter of the carbon dioxide released into the atmosphere each year; as CO2 levels in the atmosphere increase from the burning of fossil fuels, so do ocean levels, making seas more acidic. This acidification threatens coral reefs, marine ecosystems and wildlife.
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