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5. Analysis of Inventory Findings <br />The results of the community GHG emissions inventory can be analyzed by the type of activity <br />contributing to greenhouse gases, and by the energy source that creates those emissions. Both <br />types of analysis can be used in the development of GHG reduction strategies. The next sections <br />provide a more detailed view of Eugene GHG emissions data by activity, by fuel source, and <br />finally by fuel source within each activity sector <br />5.1 Results by Sector <br />All economic sectors show growth in the total amount of greenhouse gas emissions from 1990 <br />through 2020, with the exception of solid waste. As noted above, this growth parallels the <br />growth in Eugene’s population. The following charts show the relative impact of the five <br />economic sectors over the period included in the model. <br />The transportation sector is the largest component of Eugene’s greenhouse gas emissions, <br />projected to increase to almost 800,000 metric tonnes by 2020 (Figure 3). The transportation <br />sector includes the greenhouse gas emissions due to the residential, commercial and industrial <br />vehicle use within Eugene, based on computer modeling of vehicle miles traveled by each type <br />of activity. Emissions related to residential and commercial structures are the next largest <br />contributors to Eugene’s greenhouse gas emissions, projected to reach about 350,000 metric <br />tonnes and nearly 300,000 metric tonnes respectively by 2020. The industrial sector produces <br />the least greenhouse gas emissions, projected at about 170,000 metric tonnes in 2020. <br />Figure 3 - EugeneCommunityGreenhouseGasEmissions by Sector <br />900,000 <br />800,000 <br />700,000 <br />600,000 <br />500,000 <br />400,000 <br />300,000 <br />200,000 <br />100,000 <br />- <br />(100,000) <br />199020052020 <br />ResidentialCommercialIndustrialTransportationWaste <br />5 <br />