Hi Greg, If I had a choice I'd go for Scotland, where the weather might get better for a bit!
But seriously, if every proposed geoengineering technique is rejected on spurious argument, then I don't see much future for any of us. I've yet to see a good argument against biochar for CDR to reduce atmospheric CO2 or cloud brightening to cool the Arctic. BTW, regenerative agriculture advocates are claiming they could absorb more CO2 than currently being emitted [1], which is more than biochar advocates have been claiming. Cheers, John [1] http://rodaleinstitute.org/assets/RegenOrgAgricultureAndClimateChange_20140418.pdf Quote: *Simply put, recent data from farming systems and pasture trials around the globe show that we could sequester more than 100% of current annual CO2 emissions with a switch to widely available and inexpensive organic management practices, which we term “regenerative organic agriculture.” These practices work to maximize carbon fixation while minimizing the loss of that carbon once returned to the soil, reversing the greenhouse effect.* On Wed, Sep 2, 2015 at 5:24 AM, Greg Rau <[email protected]> wrote: > Dear Stephen, > I don't follow. You mean not even allow (Darwinian) selection of the best > solutions? Just kill them all and party while we still can? At your place > or mine? > Greg > -------------------------------------------- > On Tue, 9/1/15, Stephen Salter <[email protected]> wrote: > > Subject: Re: [geo] CDR: Clearing the air > To: [email protected] > Date: Tuesday, September 1, 2015, 1:37 AM > > > Hi All > > > > Any possible solution to any problem is a threat to > all the other > possible solutions. We must therefore reject all of > them even if > we really need all of them together. > > > > Stephen > > > > > > > > Emeritus Professor of Engineering Design. School of > Engineering, > University of Edinburgh, Mayfield Road, Edinburgh EH9 > 3JL, > Scotland > [email protected], > Tel +44 (0)131 650 5704, Cell 07795 203 195, > WWW.homepages.ed.ac.uk/shs, > YouTube Jamie Taylor Power for Change > > > On 31/08/2015 22:16, Greg Rau wrote: > > > > http://berc.berkeley.edu/carbon-removal-mitigation-strategy/ > > "Summary: Carbon removal techniques, while important > for fighting climate change, have faced resistance from some > in the environmental community due to their perception as a > threat to the deployment of other climate change mitigation > techniques. Recently, the view that carbon removal is a > complement, not a substitute, for other mitigation > approaches has gained mainstream acceptance — a positive > development that will hopefully help carbon removal > solutions emerge in sustainable and appropriate manner for > fighting climate change." > > "1. Carbon removal technologies are NOT an excuse to > continue business as usual. > ..... > 2. Carbon removal technologies will NOT allow us to delay > action on fighting climate change. > ..... > 3. Research into carbon removal helps balance resources from > other, more immediate mitigation options. > ...... > Conclusion > It is great news that the scientific community is increasing > its efforts to bring carbon removal solutions into the same > light as the rest of the mitigation family, and although > there are legitimate reasons to doubt the potential for > negative emissions technologies, their potential threat to > other mitigation techniques is not one of them." > > GR - Amen > > > > > > > > -- > > You received this message because you are subscribed to the > Google Groups "geoengineering" group. > > To unsubscribe from this group and stop receiving emails > from it, send an email to [email protected]. > > To post to this group, send email to [email protected]. > > Visit this group at http://groups.google.com/group/geoengineering. > > For more options, visit https://groups.google.com/d/optout. > > -----Inline Attachment Follows----- > > The University of > Edinburgh is a charitable body, registered in > Scotland, with registration number > SC005336. > > -- > You > received this message because you are subscribed to the > Google Groups "geoengineering" group. > To unsubscribe from this group and stop > receiving emails from it, send an email to > [email protected]. > To post to this group, send email to [email protected]. > Visit this group at > http://groups.google.com/group/geoengineering. > For more options, visit > https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "geoengineering" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/geoengineering. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. 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