The first chart shows the amount of gaseous carbon (CO2) released by vehicles from different transportation modes, US averages, data from the Federal Transit Administration.
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| CityLab 21 November 2015, click for article |
Intuition would suggest buses emit more carbon than passenger cars but the chart above shows the opposite. A local UCI study using OCTA route data shows the emission level for a single occupancy car and diesel bus are equivalent when the occupancy is 8.
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| "From Cars to Busses", UCI, click for article |
On Earth Day consider the cleaner alternatives to cars and buses: rail walk or bike, for those mode shares the research is universally clear. Only 364 days till next Earth Day.
-LS