EnvironmentRussia declares state of emergency as oil washes ashore after twin tanker incidentsA third vessel in fleet of Volgotanker issues distress callA view from the Volgoneft 239 showing the Russian tanker Volgoneft 212 sinking in the Kerch Strait on 15 December.Photo: SOCIAL MEDIA/REUTERS/SCANPIXEric Priante MartinTradeWinds deputy editorMiami