environment · 3 outlets · 3 linked reports
Ocean Acidification Becomes the 7th Planetary Boundary We've Breached
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Summary
- Scientists say ocean acidification has crossed its 'planetary boundary' — the safe operating limit for humanity — becoming the seventh of nine such boundaries to be breached.
- Research in Global Change Biology found the threshold was likely passed around 2020, with roughly 40% of surface waters and 60% of deeper waters now beyond the danger line.
- Since pre-industrial times, the ocean has lost about 20% of its calcium carbonate, threatening shell- and skeleton-building marine life.
The question
Crossing the ocean-acidification boundary is a dire warning the world can't ignore.
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