Jessica said,
" Maybe the thing to concentrate on is what would increase long lived soil
carbon rather than photosynthesis."
Thanks, Jessica, great idea.  How about this?  How to do long-lived storage
in the sea, using natural processes?

On Wed, Nov 10, 2021 at 6:54 PM Jessica Gurevitch <
jessica.gurevi...@stonybrook.edu> wrote:

> We hardly know what the impacts of SAI would be on ecological systems and
> we really need to learn more. My best guess (and it’s just an evidence-free
> guess at this point) is that some organisms and systems would benefit from
> SAI, perhaps greatly, and others would be harmed, maybe by a lot.  Much of
> that depends on the details, like how much we reduce emissions at the same
> time. We need a lot more information.  Certainly what we’re doing now to
> the atmosphere and biosphere is harming many systems and organisms, and
> causing extinctions and displacements.  Some are thriving,
> though—unfortunately many of those doing well are cosmopolitan invasives.
>
> In my opinion the benefits and risks to ecological systems are
> inextricably bound to the fate, well being and suffering of humans and
> human systems.
>
>
> Sent from my iPhone
>
> On Nov 10, 2021, at 6:07 PM, Michael Kleeman <mklee...@well.com> wrote:
>
> 
> Irrespective of the benefits or risks of solar radiation management the
> ecosystem impacts are real.
>
> And for reference deserts have a rich life and are sensitive to light,
> pressure, vibration and general disruption.   Different from forested area
> but no less alive in their own way
>
> We need to be humble in the face of complex systems and not propose
> simplistic interventions that make assumptions based on too little data.
>
> On Nov 10, 2021, at 12:55 PM, Oliver <oliver_bra...@uni-hohenheim.de>
> 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 <infogeo...@gmail.com> 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.
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