It'd be nice if a no carbon future would be within reach but as far as I know, we do not have the technology to make this happen. Acting as if it's just a matter of time until we do... well, that is nothing short of a high-stakes gamble. Furthermore, we already have too much CO2 in the atmosphere -- even if we'd go no carbon _today_. We will need to actively remove it before we have passed too many ecological tipping points from which there may not be a return to the status quo.