Forests also create biogenic aerosols, which influence both albedo and rainfall. This is a complex effect, as A) emissions aren't constant, typically rising in hot weather B) rainfall effects vary depending on local conditions, especially background aerosol pollution.
The smoky mountains are well-known for this effect A On Thu, 6 Sep 2018, 01:54 Jessica Gurevitch, < [email protected]> wrote: > I haven't read the paper, but forests also have a cooling effect due to > transpiration (and can benefit regional rainfall if the forest is large > enough). Also, the soil is much cooler under a forest than when the forest > is cut; not sure what this does beyond a regional level (i.e. maybe this > effect is lost at a global scale?). Biodiversity losses from natural > forests (as opposed to tree plantations) are another thing to consider, > whether they 'count' as ecosystem service losses or some other > valuation--e.g., without trees, soil erosion and even landslides can occur > (depending on topography and other factors) and result in various short and > long term costs. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Jessica Gurevitch > Professor > Department of Ecology and Evolution > Stony Brook University > Stony Brook, NY 11794-5245 USA > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > On Wed, Sep 5, 2018 at 2:09 PM, Russell Seitz <[email protected]> > wrote: > >> This is the first article I have seen to economically formalize how to >> weigh the climatic and social cost of agricultural albedo change against >> the carbons sequestration and land and crop value benefits of farming and >> forestry >> >> A the authors note : >> >> "The value of land in both uses is decreased by the warming impact of >> albedo >> >> [(14) and (16)]. Carbon sequestration acts as an opposite force (16). >> These two >> >> forces also contribute to the optimal timber harvest decision (17): the >> clear- >> >> cutting stops the carbon sequestration and releases the sequestered carbon >> >> with a given time profile, but prevents albedo warming caused by a dense >> >> forest stand. The relative effect of these forces is determined by the >> natural >> >> properties of the stand (stand growth, carbon release from carbon pools >> and >> >> the strength of albedo’s warming power), and the prices assigned to carbon >> >> and albedo. The interplay of the natural processes and the prices of the >> >> externalities determines the optimal harvesting behavior and land use." >> >> >> i intend to alert them to the relevance of their methodology to other >> areas of anthopogenic albedo change, algricultural reservoir albedo >> included/ >> >> On Monday, September 3, 2018 at 10:35:47 AM UTC-4, Andrew Lockley wrote: >>> >>> Market-Level Implications of >>> Regulating Forest Carbon Storage and >>> Albedo for Climate Change Mitigation >>> Aapo Rautiainen, Jussi Lintunen, and Jussi Uusivuori >>> We explore the optimal regulation of forest carbon and albedo for >>> climate change >>> mitigation. We develop a partial equilibrium market-level model with >>> socially >>> optimal carbon and albedo pricing and characterize optimal land >>> allocation and >>> harvests. We numerically assess the policy’s market-level impacts on land >>> allocation, harvests, and climate forcing, and evaluate how parameter >>> choices >>> (albedo strength, productivity of forest land, and carbon and albedo >>> prices) affect >>> the outcomes. Carbon pricing alone leads to an overprovision of climate >>> benefits >>> at the expense of food and timber production. Complementing the policy >>> with >>> albedo pricing reduces these welfare losses. >>> Key Words: albedo, carbon, climate, externality, forest, harvest, land >>> use, >>> optimization, timber >>> >> -- >> 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.
