Matt B, you are correct. But for government types, having information and a study that adresses their concerns WITH solutions to those problems is very important. No matter how simple those solutions are to experienced designers or disc golfers or even common sense - those same solutions are important to the municipalites that need responses to the environmental questions.
Its not a comparative study on the overall impacts of various sports, but a detailed and 'quanitfy' with statistics that a government repsresentative can use when discussing a new course, or maintaining an older course.
Any information we can use to help in course proposals is helpful. For example, some of this study could be quoted and reference in proposals. Sourced information in a proposal has helped me in busines, so why not in my hobby (hopefully a part time job as I gain more design and build experience).
A few others that have requested have to wait till Monday when I get to work, as I saved the study on that computer, I'll send it out to the rest of those that requested the study tomorrow or Tuesday as work allows some free time.