Combined transportation and building sector impacts provide the most complete picture of the greenhouse gas emissions of the varying futures presented by the insight2050 scenarios. Passenger vehicle transportation, along with residential and commercial building energy use, currently account for over half of total carbon emissions in Central Ohio. Land use and transportation planning in the region, in conjunction with state and federal policies in regulating energy emissions and efficiency, will play a role in reducing greenhouse gas (GHG) emissions.
Total GHG emissions – including those from passenger vehicles, and emissions associated with residential and commercial building energy consumption – vary across the scenarios due to their differences in land use patterns. In 2050, Past Trends, with the highest proportion of growth occurring as Standard suburban development, would produce about 36 million metric tons (MMT) of annual GHG emissions from buildings and transportation, the highest among the scenarios. Emissions decrease as land use patterns become more compact: in comparison to Past Trends, Planned Future results in 2% lower annual emissions; Focused Growth results in 7% lower emissions, and Maximum Infill results in 9% lower emissions. For Focused Growth, the reduction is equal to the annual GHG emissions of 600,000 cars on Central Ohio roads; for Maximum Infill the reduction is the equivalent of the yearly emissions from 730,000 cars.
Annual Transportation and Building Energy GHG Emissions in 2050 (MMT CO2e)
Annual Transportation and Building Energy GHG Emissions per Capita (lbs CO2e)