Dead dolphins on Russian beaches as Black Sea oil disaster escalates

In mid-December 2024, two Russian tankers carrying over 9,200 tonnes of fuel oil sank in the Kerch Strait during a violent storm. Approximately 4,000 tonnes spilled into the Black Sea. Within weeks, the slick spread across vast swathes of coastline — from Crimea to Georgia — leaving blackened beaches and poisoned marine life in its wake.

The situation remains especially dire in Russia’s Krasnodar region. On April 22, 2025, environmental volunteers cleaning beaches near Anapa reported fresh oil deposits — and the bodies of three dead dolphins washed ashore. The discovery was shared by ecologist Zhora Kavanosyan via social media, sparking renewed concern over the ecological toll of the spill.

Unlike crude oil, which forms thin surface films, fuel oil in cold water coagulates into dense clumps, some of which sink to the seabed. These tar-like masses are far harder to remove and often travel great distances under the influence of waves and wind.

According to Greenpeace’s Central and Eastern Europe expert Dmitry Markin, the primary damage is done below the surface — to mollusks, algae, and other benthic organisms that form the food base for fish. Through fish, toxins accumulate in larger predators, including dolphins, birds, and eventually humans.

Legal proceedings have begun. Russia’s main environmental regulatory body — the Federal Service for Supervision of Natural Resource Usage — has filed lawsuits against two companies believed to be responsible for the incident. The total damages sought amount to 84.9 billion rubles (approximately $930 million). Whether Russian environmental agencies will succeed in enforcing accountability remains to be seen. To date, Russia has seen few precedents of large-scale financial settlements in cases involving marine pollution.

For comparison, the 2020 Arctic diesel spill in the city of Norilsk led to a federal emergency declaration and a record fine imposed on Norilsk Nickel. The company, in turn, undertook a massive cleanup effort involving river restoration and soil decontamination — one of the most ambitious environmental responses in Russian history.

By contrast, the Black Sea disaster has unfolded with little public visibility outside of volunteer reports. While litigation is underway, cleanup efforts still rely heavily on civil society initiatives. International observers warn that, if left uncontained, the fuel oil slick could eventually reach the shores of Romania, Bulgaria, or Turkey.

For now, it is the volunteers — not heavy equipment — who are scraping the oil off the sand. And the dolphins keep washing ashore.

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