Total CO2 Emissions (Electricity + Fossil Fuel) Table 2. The new college’s CO2 emissions per m2 Total CO2 Emissions (Electricity + Fossil Fuel) New college’s Gross Useable Floor Area (m2) CO2 Emissions Per m2 (Total CO2 Emissions / Gross Useable Floor Area) (kg/m2) 130,543 8,972 14.55 David William Dobson et al. Sustainable Construction: Analysis of Its Costs and Benefits. American Journal of Civil Engineering and Architecture, 2013, Vol. 1, No. 2, 32-38. doi:10.12691/ajcea-1-2-2 © The Author(s) 2013. Published by Science and Education Publishing.