that was your chart not mine, so why would I know if it’s data was accurate or not?Were there mass extinctions in the 1920's and the 1960's when the pH dropped to 7.75 ?
https://assets.publishing.service.g.../file/645500/Ocean_Acidification_final_v3.pdf
The uk govs report shows that in the conclusions, that what they say will have an effect by 2045.
ph is not an even effect when looking at ocean scales this shows it more clearly.
https://sos.noaa.gov/catalog/datasets/ocean-acidification-surface-ph/