That is like arguing against drowning because you require water. The dose and application make the "poison".
It is even true that the CO2 was at this point before. If it had shifted at geological timescales even if it was from human activity it would be more or less fine as the ecosystem could adapt to it like previous epoches.
Certainly there would be extinctions but would give time to adapt and speciate.
Tree planting helps some but it isn't comparable at scale at all - as in running out of available landmass bad.
Tree planting would help the ultrapoor if they maintained it locally given things like impact on soil erosion and rainfall but those are only localized effects
It is even true that the CO2 was at this point before. If it had shifted at geological timescales even if it was from human activity it would be more or less fine as the ecosystem could adapt to it like previous epoches. Certainly there would be extinctions but would give time to adapt and speciate.
Tree planting helps some but it isn't comparable at scale at all - as in running out of available landmass bad.
Tree planting would help the ultrapoor if they maintained it locally given things like impact on soil erosion and rainfall but those are only localized effects