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A comment on Project Vesta – Mitigating climate change with green sand beaches. Parent comment

Re:Project Vesta – Mitigating climate change with green sand... by shawnb576 on Wednesday July 10, 2019 @03:53PM (#20405839)
1000ppm decreases human cognitive ability by ~20%. It's hard enough to deal with these problems with the brainpower we have.

[1] https://ehp.niehs.nih.gov/doi/10.1289/ehp.1510037

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