> And that’s what humanity emitted in 1990, so it’s achievable. Since then, we’ve double or trippled. Note that global population in 1990 was 5.3 bn vs 7.4 bn

> And that’s what humanity emitted in 1990, so it’s achievable. Since then, we’ve double or trippled. Note that global population in 1990 was 5.3 bn vs 7.4 bn in 2022. That doesn't mean it isn't achievable - but it's implies a significant per-person reduction to achieve 90s levels.