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D13b. Please explain <br />how you came up <br />with the number of <br />years in the previous <br />question and add any <br />other relevant <br />information. Please <br />list any sources <br />used. (200 word limit) <br />W e estimate the emissions reduction will take place ov er minimum 40 <br />years. This is a conservative estimate used in urban forestry. <br />U.S. Forest Serv ice – Urban Tree Longev ity <br />Roman, L. A., & Scatena, F. N. (2011). Street tree survival rates: Meta- <br />analysis of previous studies and application to a field survey in <br />Philadelphia, PA, USA. Urban Forestry & Urban Greening, 10(4), 269–274. <br />https://doi.org/10.1016/j.ufug.2011.05.008 <br />Finding: W hile some urban street trees die within the first 10 years, <br />well-sited and maintained trees often live 40+ years in cities, with <br />much longer lifespans in less constrained suburban/rural conditions. <br />U.S. Forest Serv ice – i-Tree Carbon Modeling Guidance <br />U.S. Forest Service. (n.d.). i-Tree Eco Carbon Storage and Sequestration. <br />Retrieved from https://www.itreetools.org/ <br />Finding: i-Tree modeling assumes sequestration continues through the <br />functional life of the tree, typically 40–100 years for native species, <br />depending on maintenance and site conditions. <br />Nowak et al., USDA Forest Serv ice (2002) <br />Nowak, D. J., & Crane, D. E. (2002). Carbon storage and sequestration by <br />urban trees in the USA. Environmental Pollution, 116(3), 381–389. <br />https://doi.org/10.1016/S0269-7491(01)00214-7 <br />Finding: Mature urban trees provide consistent sequestration over <br />decades, with lifespan averages of 40–60 years for many species in <br />urban forestry studies. <br />D14. Please <br />describe the location <br />of the emissions <br />reduction. W here <br />would fossil fuels <br />have been burned if <br />not for your project? <br />For projects that <br />reduce electricity <br />usage or that <br />generate solar <br />energy, feel free to <br />state “grid-tied <br />electricity reduction” <br />if you cannot <br />determine the <br />location of emissions <br />produced from <br />electric power <br />generation. (200 <br />word limit) <br />By reducing the urban heat island effect through strategic tree planting, the <br />program will decrease the need for air conditioning in the homes. This <br />reduction in cooling demand translates to lower electricity consumption <br />and, consequently, a decrease in fossil fuel use associated with electricity <br />generation. The emissions reductions primarily impact local and regional air <br />quality by mitigating the need for additional electricity production, which <br />would otherwise rely on fossil fuels. <br />Docusign Envelope ID: CB1A7685-96B7-4FBD-80E0-8CF756D5E579