MASINLOC, Zambales—As leader of the San Salvador Biodiversity Friendly Association, Edna Sarmiento is committed to conservation projects such as planting mangroves, monitoring environmental violations, and pushing cleanups in the Masinloc-Oyon Bay Protected Seascape and Landscape (MOBPLS). This is why Sarmiento and her group were gravely alarmed when, last Oct. 24, a barge carrying more than...