From the math I've seen, bicycling is 1 order of magnitude lower CO2 emission than driving. Here is one source https://ecf.com/news-and-events/news/how-much-co2

From the math I've seen, bicycling is 1 order of magnitude lower CO2 emission than driving. Here is one source https://ecf.com/news-and-events/news/how-much-co2-does-cycling-really-save https://ecf.com/news-and-events/news/how-much-co2-does-cycli... I was surprised it wasn't a bigger difference myself. It also appears buses are in the 1 order of magnitude range: http://www.dnrec.delaware.gov/dwhs/info/Pages/OzonePublicTrans.aspx http://www.dnrec.delaware.gov/dwhs/info/Pages/OzonePublicTra..., https://www.citylab.com/transportation/2012/11/can-we-please-stop-pretending-cars-are-greener-transit/3960/ https://www.citylab.com/transportation/2012/11/can-we-please...