Measures that tackle air pollution have led to well-documented, largely positive health outcomes that need not be repeated here. That cooling is an "unintended consequence" of such measures is hardly news: that is why several recent endeavours have called for tackling air pollution and climate in an integrated fashion (e.g. http://www.igacproject.org/sites/all/themes/bluemasters/images/IGBP_IGAC_AirPolClim_Statement_FINAL.pdf).
Are members of this group considering researching aerosol removal to intentionally warm the climate? Any current research or proposed research projects aimed at tackling climate change by engaging in climate warming? Do update the group if that is the case. Then we can have a meaningful conversation about that "extensive, un-announced , un-reviewed and un-regulated a climate intervention". On Monday, May 27, 2013 5:53:14 AM UTC+2, Ken Caldeira wrote: > > > Why aren't ETC and the Chemtrail nutters up in arms about this? > > They would rather focus on the hypothetical and the fantastical than focus > on the climate change that modern society is today knowingly causing. > > > > On Sun, May 26, 2013 at 2:38 PM, Russell Seitz > <[email protected]<javascript:> > > wrote: > >> So extensive, un-announced , un-reviewed and un-regulated a climate >> intervention must surely contravene the London Convention! >> >> >> On Saturday, May 25, 2013 12:12:18 PM UTC-4, Ken Caldeira wrote: >> >>> http://www.sciencedirect.com/**science/article/pii/**S1352231011007722<http://www.sciencedirect.com/science/article/pii/S1352231011007722> >>> >>> Atmospheric >>> Environment<http://www.sciencedirect.com/science/journal/13522310> >>> >>> Volume 46<http://www.sciencedirect.com/science/journal/13522310/46/supp/C>, >>> January 2012, Pages 545–553 >>> [image: Cover >>> image]<http://www.sciencedirect.com/science/journal/13522310/46/supp/C> >>> Regional warming from aerosol removal over the United States: Results >>> from a transient 2010–2050 climate simulation >>> >>> - L.J. >>> Mickley<http://www.sciencedirect.com/science/article/pii/S1352231011007722#> >>> >>> a<http://www.sciencedirect.com/science/article/pii/S1352231011007722#aff1> >>> , [image: Corresponding author contact >>> information]<http://www.sciencedirect.com/science/article/pii/S1352231011007722#cor1> >>> , [image: E-mail the corresponding author], >>> - E.M. >>> Leibensperger<http://www.sciencedirect.com/science/article/pii/S1352231011007722#> >>> >>> a<http://www.sciencedirect.com/science/article/pii/S1352231011007722#aff1> >>> , >>> b<http://www.sciencedirect.com/science/article/pii/S1352231011007722#aff2> >>> , >>> - D.J. >>> Jacob<http://www.sciencedirect.com/science/article/pii/S1352231011007722#> >>> >>> a<http://www.sciencedirect.com/science/article/pii/S1352231011007722#aff1> >>> , >>> - D. >>> Rind<http://www.sciencedirect.com/science/article/pii/S1352231011007722#> >>> >>> c<http://www.sciencedirect.com/science/article/pii/S1352231011007722#aff3> >>> >>> >>> We find that >>> removing U.S. aerosol significantly enhances the warming from greenhouse >>> gases in a spatial pattern that >>> strongly correlates with that of the aerosol. Warming is nearly >>> negligible outside the United States, but >>> annual mean surface temperatures increase by 0.4 - 0.6 K in the eastern >>> United States >>> >>> >>> This article suggests that "inadvertent regional geoengineering" is >>> already cooling the US by about 0.5 C in the eastern US. Note that they >>> find little effect outside of the "geoengineered" region. >>> >>> (This came out last year but I missed it then.) >>> >>> >>> _______________ >>> Ken Caldeira >>> >>> Carnegie Institution for Science >>> Dept of Global Ecology >>> 260 Panama Street, Stanford, CA 94305 USA >>> +1 650 704 7212 kcal...@**carnegiescience.edu >>> http://dge.stanford.edu/labs/**caldeiralab<http://dge.stanford.edu/labs/caldeiralab> >>> >>> @kencaldeira >>> >>> *Caldeira Lab is hiring postdoctoral researchers.* >>> *http://dge.stanford.edu/labs/caldeiralab/Caldeira_employment.html* >>> >>> Check out the profile of me on NPR's All Things >>> Considered<http://www.npr.org/2013/04/22/176344300/this-scientist-aims-high-to-save-the-worlds-coral-reefs> >>> >> -- >> 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] <javascript:>. >> To post to this group, send email to [email protected]<javascript:> >> . >> Visit this group at http://groups.google.com/group/geoengineering?hl=en. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > -- 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?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
