Fuel oil pollution continues to appear on beaches along Bulgaria ’s Black Sea coast, with new reports emerging almost daily from areas stretching between Rezovo, Sinemorets, Lozenets, Arkutino and Kamchia. While authorities say the contamination likely comes from older deposits disturbed by rough seas, environmental experts are urging a deeper investigation into potential sources, including commercial vessels and Russia’s shadow fleet, writes Elitsa Simeonova from Bulgarian media svobodnatochka.