Thanks Jim, nicely written. I like your comment about putting your money where your mouth is.
I have advocate volunteers for the environment knocking on my door a couple times a year asking for donation to help their cause. For a couple years they have been a proponent for the abolishment of landscape pesticides.
Every time they came to my door I asked them for proof, show me the scientific study proving your accusation. All they could show is a couple news articles. I would again ask for the documented proof. (by this time I becoming enraged) I would quickly run up to the office and bring down a folder of copies of published studies and hand it to them. Do you or any of your organization of any scientific studies to back up your cause? Nope not one. I actualy had one kid hand me all the paper work he had and tell me to throw it out, he quit.