Re[2]: [at-l] Endangered Parks List

[ryan@hack.net (Ryan K. Brooks)]

Not knowing much about modern snowmobiles, I assume they're all two-stroke?
Are any of the newer machines four-stroke?

I would imagine that would have a huge impact on emissions (pollution and
noise).

R

----- Original Message -----
From: "Bob C." <ellen@clinic.net>
To: <at-l@backcountry.net>
Sent: Tuesday, March 26, 2002 9:41 AM
Subject: Re[2]: [at-l] Endangered Parks List


> "...I'd still like to see some numbers.  How much pollution is generated
in a
> snowmobile-hour?" Billie asks.
>
>  I've seen the numbers and they are enormous. But I forget the details.
Personal
>  watercraft which have the same basic engines as snowmobiles, put out more
>  pollution in eight hours than a typical automobile does in a month -- or
maybe
>  a year. The figures are so enormous that the details don't matter.
>
>  BTW. I understand some of the newer and more expensive snow machines are
less
>  polluting -- and less noisy.
>