> No, it inherently incorporates all natural processes that capture carbon.
It literally cannot, because it's not parameterized on the amount of additional plants being planted.
> Artificial, sure, if you want to point at them I believe current effots might reduce the required reductions from 99.9% to 99.8%.
Goalpost moving (i.e. fixing a particular value in hypothetical future assumptions that was not fixed or agreed-upon previously in order to support an otherwise-false point), which solidly sets the original claim as false.
> However, I wrote "emissions", and the overwhelming majority of CCUS systems are reditecting what would otherwise be emissions directly to capture, i.e. what I wrote would include that as reducing "emissions".
Technically compatible with your statement but not how the vast majority of individuals would interpret it as you originally wrote it.
To be clear: I'm not arguing that we don't need to substantially reduce greenhouse gas emissions or that carbon capture is necessary. I'm arguing that last point, that "we need to reduce emissions by 99.9%" is extremely misleading and much more harmful than hurtful for those ends.