In these days, it is becoming increasingly difficult to ignore energy shortages due to increasing energy usage in buildings. In building sector, we could expect that greater building areas imply more greenhouse gas (GHG) emission. In this paper, the correlation between building size and GHG emission is clarified by extracting a regression line and analyzing its residuals. By looking at the regression lines, our study finds out the buildings in Ontario, Canada, that emit significantly large and small amount of GHG, and points out the reasons why the buildings show the greatest or lowest GHG emission profile.
