Instead of throwing trillions of dollars at non existent "global warming"; here is a brilliant common sense approach to increasing fuel mileage; thus decreasing petroleum imports; and all for fractions of a penny on the dollar.
http://www.foxnews.com/leisure/2009/11/13/smart-traffic-lights-double-fuel-efficiency/?loomia_ow=t0:s0:a4:g4:r2:c0.000000:b0:z5
- 67GTO