Cousin Peter is in the NY Times today talking about snowmobiles in Yellowstone!
Dr. Peter Rabinowitz a specialist in occupational and environmental medicine at Yale who assessed noise levels for snowmobile opponents, said in a December 2005 letter to the park superintendent that noise levels even from the newer snowmobiles were dangerous to riders, who risked "permanent hearing loss.""It is important to emphasize this fact," Dr. Rabinowitz said, "since the public may have been led to believe that 'Best Available Technology' is synonymous for 'safe' (it apparently is not) and consequently may not be aware of the risk to their hearing from snowmobile use."
Thank you Mom for the tip.