Greg l still repeat that all those models are wrong. You don't need Keith's model to understand that local and regional climatologies are by nature diverse both in terms of mean values and dispersions as well as mitigating factors (e.g. land use and land cover). When some areas are warm and wet, others cold and dry while some others are moderate. Thence, there would never be a global thermostat but local or sub-regional ones, depending on the targets of the geoengineer. lf some will have advanced technologies for cooling their locations and sub-regions, others will just be the casualties of those interventions taking place elsewhere. As a result, the global macroclimate might be badly metamorphised due to unexpected outcomes of engineering. That risk is permanent and we need to look at it keenly instead promoting some knowledge we don't really own. Thanks Cush
Envoyé depuis un mobile Samsung par Prof. Dr. Cush Ngonzo Luwesi, PhD -------- Original message -------- From: Greg Rau <[email protected]> Date: 20/03/2017 00:17 (GMT+01:00) To: Geoengineering <[email protected]> Subject: [geo] A GE View from Down Under https://www.thesaturdaypaper.com.au/2017/03/18/geoengineering-against-climate-change/14897556004351 "“Every major climate model that’s been run shows that if you have a moderate amount of solar geoengineering, say enough to cut the rate of warming in half, then almost all regions show both temperature and precipitation getting closer to pre-industrial,” says Keith. “If it’s true, it suggests it could really reduce climate risks a lot this century.” Other climate scientists aren’t convinced by Keith’s plan. Raymond Pierrehumbert, at the University of Oxford, says ramping up and down solar geoengineering would still take close to a century. And there’d still be a risk of uncontrolled termination for a range of reasons including “economic collapse, war and disagreement per where to set the thermostat”." -- 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.
