Frankly, I think he is clueless...
Basically, your bacon-fueled bike commute is killing the planet, so you best be trading in that Schwinn for a Prius and a pile of chickpeas.
Thorpe’s conclusion is drawn by using a measure called carbon dioxide equivalents (CO2e), which enables scientists to provide a unit-for-unit comparison of different kinds of gases based on their “Global Warming Potential” (GWP), and thereby analyze more complex scenarios that involve emissions of multiple different types of gases in order to more accurately gauge their environmental impact.
https://momentummag.com/carnivorous-...rd-researcher/
Great, now factor in vegetarian cyclists, and the fact that even if a Prius only uses 8X more energy than a bike, that is still 8X more, and it still requires more road. Sheesh
Bike on my friends, this is an old and poorly supported argument.