Compare this with a fully occupied bus, with passengers only emitting 160 grams per passenger, per mile.
The 2019 EPA Automotive Trends Report also concludes that the average passenger has been found to emit 350 grams of CO2 per mile driven—making an 18 mile round trip in a single-occupancy vehicle emit over six kilograms of carbon dioxide. Compare this with a fully occupied bus, with passengers only emitting 160 grams per passenger, per mile.