Hello, important to notice: This study only investigate biogeophysical feedbacks and is forced with fixed atmospheric CO2 concentration. We focus here on (not intended) side effects. For biogeochemical processes please read Bowring et al. (2014) or Ornstein et al. (2009) Best regards Tronje Bowring SPK, Miller LM, Ganzeveld L, Kleidon A (2014) Applying the concept of “energy return on investment” to desert greening of the Sahara/Sahel using a global climate model. Earth Syst Dyn 5:43–53. doi: 10.5194/esd-5-43-2014
Ornstein L, Aleinov I, Rind D (2009) Irrigated afforestation of the Sahara and Australian Outback to end global warming. Clim Change 97:409–437. doi: 10.1007/s10584-009-9626-y On Jan 13, 2016, at 1:22 PM, Fred Zimmerman wrote: > Interesting study (and exercise in positive thinking)! Study finds 0.04C net > global cooling, not bad for a "wedge" -- if I recall correctly Socolow et al. > required 15 wedges to achieve stabilization, e.g. (simplifying vastly) > roughly 0.2C/wedge (2004, 2011 > https://www.princeton.edu/mae/people/faculty/socolow/Wedges-reaffirmed-PLUS-ten-soliticed-comments-9-29-11.pdf) > Each wedge requires a pretty huge effort like building 750 new nuclear > reactors, or afforesting the Sahara. However, the poster doesn't address the > likely ripple effects of afforestation, i.e. growth in population, land use, > and energy consumption which would very likely offset any savings. > > On Wed, Jan 13, 2016 at 3:50 AM, Andrew Lockley <[email protected]> > wrote: > Poster's note : economically, cropland would be more likely funded > > Attached > > > -- > 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 https://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 https://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 https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
