The spinning windmills at the old Bethlehem Steel site in Hamburg and Lackawanna were a fitting backdrop as local environmentalists and community leaders made a plea to Albany to focus more on renewable energy.“Let’s Turn, Not Burn” was the campaign slogan the groups used Tuesday to launch the Sierra Club’s Renewable Energy Week in Buffalo, Rochester, Binghamton and Auburn.The Buffalo event was held at Dug’s Dive on the waterfront, with the 14-turbine wind farm in the background.