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• 08:07, 16 April 2022 Pat Palmer talk contribs created page Patrick Center for Environmental Research (Created page with "The '''Patrick Center for Environmental Research''' (PCER) is an environmental research institute located within the Academy of Natural Sciences of Drexel University. Formerly called the Limnology Department, PCER was founded in 1947 by Ruth Patrick, who had been working in the Diatom Herbarian at the Academy. PCER specialized in applied ecology for wetlands. It was one of the earliest U.S. environmental consulting concerns, and its presence in the Academy enabled...")