Brian,
Photosynthesis is good only for small scale carbon sequestration unless you somehow avoid sequestering the other plant nutrients (N, P, K, etc.) with the carbon. Terrestrial photosynthesis also requires fresh water, which is another crisis.
Mark
---------- Original Message --------
Subject: [geo] Re: The importance of bio-CCS to deliver negative
emissions
From: Brian Cartwright <[email protected]>
Date: Sun, December 06, 2015 5:09 am
To: geoengineering <[email protected]>
Cc: "R. D. Schuiling (Olaf)" <[email protected]>
To geoengineering,--I always notice that CCS seems to attach itself to "bio" and "bioenergy with" to give itself a natural aura. Is this warranted or greenwashing?On another occasion when I was critical along these lines Olaf Schuiling emailed me to say that converting CO2 to carbonates is what has been happening for billions of years.Is this in fact what happens when pressurized CO2 is injected into underground formations? Or is that conversion such a slow process that we have an expensive engineered time bomb in the interim?These facts don't appear in any discussion I've seen, and as a layman I think they are central to evaluating CCS. Without knowing whether injected CO2 verifiably creates stable carbonates I tend to think CCS is ill-conceived, and photosynthesis is by far my preference for managing CO2.Brian
On Wednesday, December 2, 2015 at 11:57:12 AM UTC-5, Andrew Lockley wrote:The importance of bio-CCS to deliver negative emissions< snipped >
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