Thanks for finding the letter. I'll mention I saw quite a few which stated their credentials in their title, and most, if not all, can be easily researched to see who they are for one interested in forming their own opinion.
In my early days I contributed to fisheries knowledge in the economic effects of overfishing, and why we need science in avoiding that.
It's a tough problem, because it's one where if you're wrong on the wrong side of equilibrium, you go into recovery, and, it's possible to go beyond the possibility of recovery. I'm afraid of science that works to find the maximum to exploit because of that. Double-check and triple-check!
I did get a kick out of the obvious signs of academia, and this list of 300 shows in a miniscule way the pride and arrogance in academia. I don't rage against it, it's required, seemingly. Look for "Emeritus" & "Distinguished", but realize it's all for fun when babbling in our later years.