This proportional symbol map shows the relative magnitude of green house gas emissions (GHG) in 2015 by large facilites in Wisconsin. Data are shown by fuel combustion and process emissions. The use of proportional symbols was the better choice to illustrate the amount of Co2 since this is based on an exact point location. Proportional maps are also best suited when showing magnitudes, or amounts of some numerical phenomena relative to other locations.
The data are reported to the EPA and available from their FLIGHT web application.
Map created by Tom Scholten.