Personally, I look forward to comments on our paper that has just been
posted for discussion and think the idea of wider discussion of draft papers
is a good idea (in addition to the normal review set of comments, which is
also taking place).
The key point of the paper is start determining if
Thanks, Andrew, for the recent updates on DAC. I remain puzzled, however, by
the continuing interest in artificial air CO2 capture when we've got in gross
some 700+ GT of air CO2 capture/yr naturally going on, in net consuming 55-60%
of our CO2 emissions. Contrary to one of the articles*, air
Greg and ccs:
This is partly to support your concern about Direct Air Capture (DAC), since we
are hearing only part of the OM portion of costs. We need to hear more, but I
believe the $100/ton CO2 number (likely equivalent to about $300/ton of
charcoal) is encouragingly lower than what we
