Originally Posted by
smasha
as for CO2, short trips in a car are MUCH WORSE than long trips. the engine runs at peak efficiency when (among other things) it's warm. driving short trips, the engine doesn't have a chance to warm up, and the fuel efficiency is not so good...
What?
So driving a long way produces less CO2? Or are you saying the car know it's going for a long drive and so skips the initial, less efficient performance?
Are we to understand that your contention is that it's better for the environment to commute by bicycle if it's a short trip?