Talk:Carbon capture and storage
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I've just done a major update on the article based on the recent IPCC report.
To do - Add table with costs for different types of CCS - Figure out a neat solution for references. Currently, all information comes from IPCC, 2005. It seemed to me a bit lame to repeat [IPCC, 2005] all over the article. - find some good illustrations to put in.
Jens Nielsen 09:33, 26 February 2006 (UTC)
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[edit] Merge
It has recently been proposed to merge the article.
I oppose this move because the subjects are clearly different, though of course there are overlaps.
CCS specifically refers to a climate mitigation idea to be applied industrially. Carbon dioxide sinks is a more general concept, and carbon sinks as such are independent of human activities. However, there is much content on the sinks page that should be removed because the information is on this CCS page. Jens Nielsen 10:20, 5 June 2006 (UTC)
- I agree with Jens and oppose merging this page. This page represents an important international initiative and conceptual approach to mitigation of global warming. Carbon dioxide sinks is a component of the carbon dioxide cycle and is distinct from any human activity designed to alter the CO2 budget. --B Carey 06:39, 6 June 2006 (UTC)
[edit] CO2 Hydrate Layer Suppression of CO2-water mixing
Anybody seen any work done on this? It was mentioned in the Nobel Intent reference I listed that the geologic survey penetrated a hydrate layer. I wonder if given enough time an unperturbed CO2-water boundry layer would form a protective CO2 hydrate, much in the way a reactive metal is oxidized by atmospheric O2. This could reduce the effective pH change. Then again, I'm not an expert on hydrate formation/stability. ScienceJunky 01:56, 26 November 2006 (UTC) well I found an answer in that IPCC document. Apparantly the hydrate layer does undergo some dissolution when fresh sea water is introduced...
[edit] Is it safe?
I'm reminded of the Lake Nyos Limnic eruption disaster where CO2 leaked out and killed thousands. Is there any information on safety? 84.13.248.194 18:32, 22 January 2007 (UTC)
- There is plenty in the IPCC report quoted. I suggest you read it and add some info on it here. Jens Nielsen 20:33, 22 January 2007 (UTC)
[edit] Can we pump it into space?
A space elevator is in the works for transporting objects, would it be possible to pump carbon dioxide out of our atmosphere? —The preceding unsigned comment was added by Zbuckholz (talk • contribs) 08:09, 11 February 2007 (UTC).
- I don't think this is even remotely possible. First, a space elevator is very much science fiction. It's unclear if it will ever be realized - certainly not in the next 20 or so years. Secondly, to permanently get rid of the CO2, you would have to accelerate it beyond 11.2 km/s. That needs a lot of energy. Combine it with the cost of capturing it in the first place, and I doubt this is even energetically feasible. If you just transfer it to some orbit around Earth, this will decay and the gas will eventually fall back (doing interesting things to existing satellites and the high atmophere, no doubt). Finally, you would be changing the atmospheric composition of Earth forever, with unknown long-term consequences.--Stephan Schulz 09:14, 11 February 2007 (UTC)
