We are on course to face mass extinction in seas similar to those experienced roughly 250 million years ago,when 90% of marine species went extinct due to massive release of CO2,says article just published (under paywall) in @ScienceMagazine@twitter.com https://www.science.org/doi/10.1126/science.abe9039 1/
This is due to combination oftemperatures &oxigen in seas.Polar species would have no escape.
If temperature<2°C,species losses would still be catastrophic (~220.000 species lost) but much more contained (<10% of total).
We are on a knife-edge. Join #ScientistRebellion 2/