Transue 1 Michael Transue Environmental Economics 624-01 Pratt School of Architecture April 2012 Dollar Amount Quantification and Analysis of the Benefits and Costs of Sweet Gum Trees A 2006 US Department of Agriculture Forest Service publication pronounced the then-existing 5.2 million urban trees of New York City covered 20.9% of the land area with their various canopies (USDA 2006). The trees of New York City provide multiple public benefits to society such as carbon sequestration, pollution reduction, energy savings, stormwater runoff reduction, increased property values as well as structural values. One of the most common and abundant tree species found within the urban New York City canopy is the sweet gum as 7.9% of the total tree area in 2006 consisted of the species, ranking third overall (USDA 2006). Sweet Gum trees are naturalizing and most often utilized in street applications, as they are approved for urban use by the City of New York Parks and Recreation Department (Parks 2012). The deciduous species ranges in height from 50’- 75’ and spread from 35’- 50’ (Trees USA 2006). Sweet gum trees attract birds and other small animals with edible fruit blooms, while humans are drawn by the “attractive foliage and fall colors” (Trees USA 2006). The dense leaf system is ideal for urban shading as the Importance Value (IV), relative leaf area and relative abundance, of Sweet Gum trees ranks 3rd out of over 50 species studied with an IV rating of 16.2 (USDA 2006). The proposed project is to plant 1,000 new sweet gum trees along the streets of New York City where possible. The program schedule consists of planting 200 sweet gum trees each year for 5 total years. The dense urban environment of New York City could benefit greatly from the services sweet gum trees render. Yet to determine the feasibility of the sweet gum tree project, the total costs of the trees must be weighed against those benefits. The development of a benefit/cost analysis offers a tool to assist in ascertaining the net benefit to society by examining the complex environmental and economic issues involved.