About the Inventory Process The first step in management of greenhouse gases (GHG) is an inventory that accounts for the various sources of GHGs. For the ICLEI program, the inventory includes community emissions. Specifically, this inventory examines county-level emissions from residential energy, non-residential energy, transportation, and waste sources within the county. This inventory is based on data from <strong>Westchester</strong> <strong>County</strong> as well as other sources, such as the New York State Energy Research and Development Authority (NYSERDA) and the Energy Information Administration (EIA). To complete the inventory, the Clean Air and Climate Protection Software ® developed by Torrie Smith Associates was used. For the community analysis the following areas were included: 1. Residential energy sources including electricity, natural gas, fuel oil, coal, wood, and propane; 2. Non-residential energy sources (this category includes commercial, industrial, and government usage) including electricity, natural gas, coal, heavy fuel oil, light fuel oil, propane, and kerosene; 3. Transportation sources including diesel, gasoline, and MetroNorth usage; and 4. Waste sources including landfilled waste and a waste to energy facility. All emissions reported by this software are converted to tons of carbon dioxide equivalents (CO 2 e). While carbon dioxide (CO 2 ) is typically the largest percentage of any inventory, there are other greenhouse gases that should be included. These include methane, nitrous oxide, some refrigerants, and sulfur hexafluoride (a gas used in electricity transmission and distribution). These gases all have a substantially larger climate impact than CO 2 , but for purposes of comparison, these gases are multiplied by a factor that determines their impact in terms of CO 2 . For instance, the climate impact of methane (according to the IPCC’s Second Assessment Report) is 21 times that of CO 2 ; thus one metric tonne of methane is equal to 21 metric tonnes of CO 2 . Sources of <strong>Westchester</strong> <strong>County</strong> Emissions The residential energy sector accounted for 3,907,000 tons; the non-residential energy sector, 3,803,000 tons; the transportation sector, 4,804,000 tons; and waste, 440,000 tons. The following table shows these emissions broken down by sector. Attachment 3: GHG Inventory and Reduction Goal <strong>Westchester</strong> <strong>Action</strong> <strong>Plan</strong>, <strong>2008</strong> 3-3
Tons of CO 2 e Produced in 2005 Residential Energy Electricity 1,188,000 Natural Gas 1,271,000 Fuel Oil 1,362,000 Other 86,000 Subtotal 3,907,000 Non-residential Energy Electricity 1,583,000 Natural Gas 853,000 Light Fuel Oil 889,000 Heavy Fuel Oil 219,000 Coal 211,000 Other 48,000 Subtotal 3,803,000 Transportation Gasoline 4,375,000 Diesel 363,000 MetroNorth Electricity 46,000 Diesel 20,000 Subtotal 4,804,000 Waste Landfill 294,000 Waste to Energy 146,000 Subtotal 440,000 Total <strong>County</strong> Emissions 12,954,000 Attachment 3: GHG Inventory and Reduction Goal <strong>Westchester</strong> <strong>Action</strong> <strong>Plan</strong>, <strong>2008</strong> 3-4
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Contents Westchester Action Plan fo
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As a community, we need to respond
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a) Enhance current regional plannin
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To find out how the actions of all
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County Government Action Summary Pr
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♦ ♦ ♦ ♦ Require all utiliti
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Evaluate potential strategies for i
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Protection of Infrastructure Develo
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Guidance for Using the Action Plan