On 12/04/2007, at 1:09 AM, Dan Minette wrote:

>
> Actually, there has been.  I remember what pollution was like 40  
> years ago
> compared to now.  For example, we have accepted a very significant  
> decrease
> in the efficiency of our cars in order to cut pollution.

Huh? What measure of efficiency is this?

Newer cars use less fuel to travel further than older cars.

Charlie
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