a lot of times, several studies are comissioned but only the favourable ones are published. Would be interesting to see other studies on this.
I like how they compare it to a chainsaw and an intersection in terms of quantity of pollution.
http://www.aboutmyplanet.com/environ...drive-through/
Some numbers there about idling. If someone could do the math and compare these numbers to a warm start I bet you'd still find stopping uses less and emits less.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.