Does this thread cover the connected issues of Overfishing + Ocean Cleanup + Deforestation?
CO2 reduction by itself won't fix the problem, because the actual regenerative ability of the ecosystem is being actively destroyed. You can have 100% renewable energy but if Ocean Life and Forests are killed off, the ecosystem will still be destroyed. We're in the midst of a 'Network Collapse', which if left unchecked, inevitably leads to a Mass Extinction event, and once that event starts, it is irreversible.