As part of the Sierra Club’s Sustainability Series, a panel discussion on ocean pollution will be held on Wednesday, June 10, 2015, at Seafarers & International House, 123 E. 15th St., Manhattan.  Door open at 6:30 for refreshments and the talk starts at 7:00.  Ronnie Ono of Ocean Conservancy will talk about ocean acidification while Judith Weis, author of Marine Pollution, will speak on reducing ocean pollution.