gasping fish and panting squid

Unless we find a way to rein in our carbon emissions very soon, a low-oxygen ocean may become an inescapable feature of our planet. A team of Danish researchers published a particularly sobering study last year. They wondered how long oxygen levels would drop if we could somehow reduce our carbon dioxide emissions to zero by 2100. They determined that over the next few thousand years oxygen levels would continue to fall, until they declined by 30 percent.

The oxygen would slowly return to the oceans, but even 100,000 years from now they will not have fully recovered. If they’re right, fish will be gasping and squid will be panting for a long time to come.
Resilience, 5/8/10