Journalistic investigations have revealed that several negotiators suffered symptoms of a suspected poisoning. The Russian billionaire Roman Abramovich was among them.
Their Russian oligarch owners have put superyachts in the spotlight since the invasion of Ukraine. But what makes these billionaires' toys the ultimate climate killers?
Superyachts have made headlines in recent weeks as European authorities target luxury vessels linked to Russian oligarchs. Some of Russia's richest men are still trying to protect their ships.