Thanks Carver: The site is very informative. I found this to be a telling remark -

The facts are fairly well established in this case. The fuel data have been peer reviewed and published. DEC people have done an internal review and of course lots of people are looking closely at the data set.


So it does seem to me that the problem is real. The solution will, in my opinion be some method of decreasing river traffic. That will no doubt cause howls of anguish from every user group.