I am sure you are right, Jessica. I would be interested in hearing your ideas on how to increase productivity on a global scale, or otherwise absorb large amounts of CO2. /Ernie
On Wed, Nov 10, 2021 at 1:55 PM Oliver <[email protected]> wrote: > Do you not think this is rather a kneejerk reaction? Is it as awful an > idea as injecting thousands of tons of silver dioxide or similar materials > into the stratosphere? An action which will influence the global weather > for a minimum of 4 years if done at the equator. Now that is a truly awful > idea. On the other hand, I would say that the consequences of lighting > forests are more predictable, and the idea is scalable and can be stopped > easily. > > In any case perhaps with some adjustment the idea may have merit. How > about lighting desert plantations in marginal areas, not in pristine forest > where delicate flora and fauna exist. Solar power can recharge batteries or > lighting. Or extreme northern boreal forest, where few other animal forest > species exist in large numbers. In areas of low radiation such a light > boost may be just what it takes to increase productivity. > > Oliver > > -- > Dr. Oliver Branch > Inst. for Physics and Meteorology (120) > University of Hohenheim > Garbenstr. 30 > D-70599 Stuttgart > > phone: 0711 - 459 -23132 > > > On 10/11/2021 17:52, Jessica Gurevitch wrote: > > This is a truly awful idea. These authors are apparently totally ignorant > of, or uninterested in, the natural world of ecological communities and of > biodiversity. Many, many organisms in tropical forests depend on nighttime > darkness to survive and function. The "unintended (or uninformed) > consequences" of this are horrifically mind blowing. > Jessica > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Jessica Gurevitch > Distinguished Professor and Co-Chair > Department of Ecology and Evolution > Stony Brook University > Stony Brook, NY 11794-5245 USA > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > On Wed, Nov 10, 2021 at 1:54 AM Geoeng Info <[email protected]> wrote: > >> https://esd.copernicus.org/preprints/esd-2021-85/ >> >> Exploration of a novel geoengineering solution: lighting up tropical >> forests at night >> >> >> Xueyuan Gao, Shunlin Liang, Dongdong Wang, Yan Li, Bin He, Aolin Jia >> >> Abstract. >> >> Plants primarily conduct photosynthesis in the daytime, offering an >> opportunity to increase photosynthesis and carbon sink by providing light >> at night. We used a fully coupled Earth System Model to quantify the carbon >> sequestration and climate effects of a novel carbon removal proposal: >> lighting up tropical forests at night via lamp networks above the forest >> canopy. Simulation results show that additional light increased tropical >> forest carbon sink by 10.4 ± 0.05 petagrams of carbon per year during a >> 16-year lighting experiment, resulting in a decrease in atmospheric CO2 and >> suppression of global warming. In addition, local temperature and >> precipitation increased. The energy requirement for capturing one ton of >> carbon is lower than that of Direct Air Carbon Capture. When the lighting >> experiment was terminated, tropical forests started to release carbon >> slowly. This study suggests that lighting up tropical forests at night >> could be an emergency solution to climate change, and carbon removal >> actions focused on enhancing ecosystem productivity by altering >> environmental factors in the short term could induce post-action CO2 >> outgassing. >> -- >> 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 view this discussion on the web visit >> https://groups.google.com/d/msgid/geoengineering/CAKSzgpY%2BwsJV%2BoDydH9fcXOdgPX5UEheUqkpZ5io2MfLozoQDw%40mail.gmail.com >> <https://groups.google.com/d/msgid/geoengineering/CAKSzgpY%2BwsJV%2BoDydH9fcXOdgPX5UEheUqkpZ5io2MfLozoQDw%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/geoengineering/CA%2BPtSAPWgexkKYvxWkEGViyTaQQNiw2FAE8kXicYJcM0Fzp%2BRg%40mail.gmail.com > <https://groups.google.com/d/msgid/geoengineering/CA%2BPtSAPWgexkKYvxWkEGViyTaQQNiw2FAE8kXicYJcM0Fzp%2BRg%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/geoengineering/5b2789a6-3faa-af9a-11d0-fa565c15e3ee%40uni-hohenheim.de > <https://groups.google.com/d/msgid/geoengineering/5b2789a6-3faa-af9a-11d0-fa565c15e3ee%40uni-hohenheim.de?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. 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