Yo,, Larry ,, as someone who has driven a school bus .... those things spew
out clouds of smoke, fumes, pollution.

In most states there are laws now that a school bus can not sit and idle.

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"Larry" wrote in message
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"Scotty" wrote in
:

Is that why they have 'idleing laws' in some cities?



No, "they" think it reduces air pollution, which is probably true for gas
cars spewing out huge clouds of NOx diesels don't produce.