1980 – The first of many ESSA acid rain workshops, this one in Ann Arbor Michigan. Dave Marmorek had just come from hiking in the Trinity Alps in CA, and was dressed in a 3-piece suit and wearing bright blue and yellow Adidas running shoes. We must have made a good impression, because a participant (Larry Barnthouse, of Oak Ridge National Labs) called 13 years later (1993) to offer ESSA an opportunity to work on the impacts of dams in the Columbia Basin, where we have been working ever since.