There's a proposal on the wiki for CFC destruction using lasers. I thought it worthy of inclusion. There are probably other techniques I'm not aware of.
details at http://en.wikipedia.org/wiki/Greenhouse_gas_remediation#CFC_Photochemistry A 2008/12/31 Dan Whaley <[email protected]>: > I understand the intent to include all greenhouse gases, but the reality is > that while there is a history of emissions control for many gases, there is > really no established history for the active *removal* of all gases. The > simple fact is that unless I am forgetting something I know of zero > proposals to enable the direct atmospheric removal of anything other than > CO2. > > Are there biologic processes for instance that demand atmospheric N2O or > atmospheric CH4 instead of CO2? Perhaps, but none that I am aware of > proposed by humans for mitigation purposes. > > I think Atmospheric Carbon Removal is the closest thing we here have come up > with that accurately identifies the category. > > It distinguishes it from CCS (i.e. flue-gas capture and sequestration) at > focuses it specifically on OIF, Lackner trees, and some of David's > concepts. Accelerated weathering perhaps. > > D > > On Wed, Dec 31, 2008 at 8:08 AM, Mike MacCracken <[email protected]> > wrote: >> >> Dear Andrew--While I have not yet had time to check out your efforts and >> offer thoughts on editing, some ideas for the next effort. >> >> So that you are not just covering the removal of CO2, I would think >> something like "Atmospheric composition management" of "Active management >> of >> atmospheric composition" would be best--you might even have it be a >> subheading for "Atmospheric composition" and then have links from >> geoengineering-related entries. In addition to the removal ideas for CO2, >> you could cover any that arise for methane, and even go back to the ones >> proposed for CFCs that included lasers to decompose them, with the laser >> beam bounced back and forth between mirrors on mountaintops to get a >> sufficiently long pathlength to give high probability of striking a >> molecule. >> >> And, of course, one would want to somehow link this in to mitigation of >> GHGs--which would be said to do at the source. And you would need to link >> to >> ideas about reforestation/afforestation. >> >> Mike MacCracken >> >> >> On 12/30/08 9:35 PM, "Andrew Lockley" <[email protected]> wrote: >> >> > >> > I am planning to start a new wiki on the various techniques such as >> > fake plastic trees, biochar etc, designed to remove GHGs from the >> > atmosphere. >> > >> > To avoid the naming dramas, I suggest the following, but would invite >> > new/better suggestions: >> > >> > Carbon Dioxide removal? (too specific) >> > Greenhouse gas removal? (too geeky?) >> > Gas Geoengineering? (will anyone know what it means) >> > >> > A >> > >> > > >> >> >> >> >> > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en -~----------~----~----~----~------~----~------~--~---
