Does the author's conclusions apply to "cool roofs", "bright water - hydrosols", and "marine cloud brightening"? The title, abstract and conclusions are unclear.
Le dim. 14 févr. 2021 à 19:21, Andrew Lockley <andrew.lock...@gmail.com> a écrit : > Solar Geoengineering, Learning, and Experimentation > David L. Kelly, Garth Heutel, Juan B. Moreno-Cruz, and Soheil Shayegh > NBER Working Paper No. 28442 > February 2021 > JEL No. D83,Q54 > ABSTRACT > Solar geoengineering (SGE) can combat climate change by directly reducing > temperatures. Both > SGE and the climate itself are surrounded by great uncertainties. > Implementing SGE affects > learning about these uncertainties. We model endogenous learning over two > uncertainties: the > sensitivity of temperatures to carbon concentrations (the climate > sensitivity), and the > effectiveness of SGE in lowering temperatures. We present both theoretical > and simulation results > from an integrated assessment model, focusing on the informational value > of SGE > experimentation. Surprisingly, under current calibrated conditions, SGE > deployment slows > learning, causing a less informed decision. For any reasonably sized > experimental SGE > deployment, the temperature change becomes closer to zero, and thus more > obscured by noisy > weather shocks. Still, some SGE use is optimal despite, not because of, > its informational value. > The optimal amount of SGE is very sensitive to beliefs about both > uncertainties. > > -- > 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 geoengineering+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/geoengineering/CAJ3C-07xhVKX_UxPfVLm3gSTmBtNic0qBTb%2B6xn8A4U9XqhnMw%40mail.gmail.com > <https://groups.google.com/d/msgid/geoengineering/CAJ3C-07xhVKX_UxPfVLm3gSTmBtNic0qBTb%2B6xn8A4U9XqhnMw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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 geoengineering+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/geoengineering/CAHodn991jTosqHwJGtBgHnfCPhBo8NoQ0y-tVP76t2M%2BGAG_Dw%40mail.gmail.com.
