Hi Greg, Yes. We are expected to sit back and let Mother Nature take her course, even though she may take us out.
Yet what Lenton and co are saying contradicts the IPCC, which says we have to go into negative emissions. So Lenton et al are even more extreme against geoengineering than IPCC!! And we are expected to survive Arctic meltdown to boot, which will surely disrupt AMOC among other things. (There's a good discussion of this at RealClimate [1]) It's crazy not to be taking control of the situation while we have the capability. But people think you and I are the crazy ones - for wanting to DO something on the required scale (aka geoengineering), while there's a chance. Cheers, John [1] http://www.realclimate.org/index.php/archives/2015/03/whats-going-on-in-the-north-atlantic/ On Wed, Mar 25, 2015 at 5:18 PM, Greg Rau <[email protected]> wrote: > All righty then, adaptation it is, and soon: > > > http://www.climatecentral.org/news/climate-change-jamming-critical-heat-conveyor-18810 > > > > "...an avalanche of cold water from the melting Greenland ice sheet > appears to be slowing the ocean circulation to levels not experienced in > more than 1,000 years. > That’s the conclusion of a bold new attempt to combine temperature > measurements and climate-related data scrounged from coral samples, ice > cores and tree rings to track the worrying decline of the critical Atlantic > Ocean phenomenon. The new research, published Monday in Nature Climate > Change > <http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate2554.html>, > used observations and studies of sea-surface temperatures to produce a new > index — one that charts the waning force of the Atlantic meridional > overturning circulation (AMOC) > <http://www.climatecentral.org/news/arctic-storms-the-climate-danger-nobodys-talking-about-15363>, > one of the planet’s most important circulation systems...." > > Good luck with that. > Greg > > > > > ------------------------------ > *From:* Andrew Lockley <[email protected]> > *To:* geoengineering <[email protected]> > *Sent:* Wednesday, March 25, 2015 9:07 AM > *Subject:* [geo] Climate emergencies do not justify engineering the > climate : Nature Climate Change : Nature Publishing Group > > http://www.nature.com/nclimate/journal/v5/n4/full/nclimate2539.html > NATURE CLIMATE CHANGE | COMMENTARY > Climate emergencies do not justify engineering the climate > Jana Sillmann, Timothy M. Lenton, Anders Levermann, Konrad Ott, Mike > Hulme, François Benduhn & Joshua B. Horton > Nature Climate Change 5, 290–292 (2015) doi:10.1038/nclimate2539 > Published online 25 March 2015 > Current climate engineering proposals do not come close to addressing the > complex and contested nature of conceivable 'climate emergencies' resulting > from unabated greenhouse-gas emissions. > References > References• Author information > Crutzen, P. Climatic Change 77, 2–220 (2006). > CASArticle > Geoengineering the Climate: Science, Governance, and Uncertainty (The > Royal Society, 2009). > Lenton, T. M. et al. Proc. Natl Acad. Sci. USA 105, 1786–1793 (2008). > PubMedArticle > Lenton, T. M. Nature Clim. Change 1, 201–209 (2011). > ISIArticle > Boettinger, C. & Hastings, A. Nature 493, 157–158 (2013). > CASISIPubMedArticle > Scheffer, M. et al. Nature 461, 53–59 (2009). > CASISIPubMedArticle > Mengel, M. & Levermann, A. Nature Clim. Change 4, 451–455 (2014). > ISIArticle > Robinson, A., Calov, R. & Ganopolski, A. Nature Clim. Change 2, 429–432 > (2012). > ISIArticle > Jones, C. et al. Nature Geosci. 2, 484–487 (2009). > CASISIArticle > Boulton, C. A., Good, P. & Lenton, T. M. Theor. Ecol. 6, 373–384 (2013). > Article > Favier, L. et al. Nature Clim. Change 4, 117–121 (2014). > ISIArticle > Robock, A., Oman, L. & Stenchikov, G. L. J. Geophys. Res. 113, D16101 > (2008). > CASArticle > Blackstock, J. J. et al. Climate Engineering Responses to Climate > Emergencies (Novim, 2009); http://arxiv.org/pdf/0907.5140 > Levermann, A. Nature 506, 27–29 (2014). > CASISIPubMedArticle > Coumou, D. & Rahmsdorf, S. Nature Clim. Change 2, 491–496 (2012). > ISI > Sillmann, J., Kharin, V. V., Zwiers, F. W., Zhang, X. & Bronaugh, D. J. > Geophys. Res. Atmos. 118, 2473–2493 (2013). > Article > Curry, C. L. et al. J. Geophys. Res. Atmos. 119, 3900–3923 (2014). > Article > Otto, F. E. L., Massey, N., van Oldenborgh, G. J., Jones, R. G. & Allen, > M. R. Geophys. Res. Lett. 39, L04702 (2012). > Article > Explaining Extreme Events of 2012 from a Climate Perspective (eds > Peterson, T. C., Hoerling, M. P., Stott, P. A. & Herring, S.) Bull. Am. > Meteorol. Soc. 94, S1–S74 (2013). > Article > Hulme, M. Progr. Phys. Geogr. 38, 499–511 (2014). > Article > Hulme, M. Can Science Fix Climate Change? A Case Against Climate > Engineering (Polity, 2014). > Ricke, K. L., Granger Morgan, M. & Allen, M. R. Nature Geosci. 3, 537–541 > (2010). > CASISIArticle > Bentley, R. A. et al. Frontiers Environ. Sci. 2, 35 (2014). > Article > Calhoun, C. Can. Rev. Sociol. 41, 373–395 (2008). > Article > Markusson, N., Ginn, F., Ghaleigh, N. S. & Scott, V. WIREs Clim. Change 5, > 281–290 (2013). > Article > Download references > Author information > References• Author information > Affiliations > Center for International Climate and Environmental Research — Oslo, Pb. > 1129 Blindern, 0318 Oslo, Norway > Jana Sillmann > Earth System Science, College of Life and Environmental Sciences, > University of Exeter, Laver Building (Level 7), North Parks Road, Exeter > EX4 4QE, UK > Timothy M. Lenton > Potsdam Institute for Climate Impact Research, Telegraphenberg A3, 14473 > Potsdam, Germany > Anders Levermann > Institute for Physics and Astronomy, Potsdam University, Campus Golm, Haus > 28, Karl-Liebknecht-Strasse 24/25, 14476 Potsdam-Golm, Germany > Anders Levermann > Faculty of Arts and Humanities, Kiel University, Leibnizstrasse 6, 24118 > Kiel, Germany > Konrad Ott > Department of Geography, King's College London, Strand, London WC2R 2LS, UK > Mike Hulme > Institute for Advanced Sustainability Studies, Berliner Strasse 130, 14467 > Potsdam, Germany > François Benduhn > Harvard Kennedy School, 79 John F. Kennedy Street, Box 117, Cambridge, > Massachusetts 02138, USA > Joshua B. Horton > Contributions > J.S. initiated and structured this Commentary. All authors contributed to > the content and writing. > Corresponding author > Correspondence to: Jana Sillmann > -- > 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. 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.
