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Motorcyclists have a higher heart rates,...
...more oxygen is used so motorcyclists release more CO2 than the zombiefied car drivers? :
via: http://inhabitat.com/washington-state-official-says-cyclists-emit-more-co2-than-motorists-and-must-be-taxed/
Motorcyclists have a higher heart rates,...
...more oxygen is used so motorcyclists release more CO2 than the zombiefied car drivers? :
via: http://inhabitat.com/washington-state-official-says-cyclists-emit-more-co2-than-motorists-and-must-be-taxed/
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