Oceans suffer from record breaking year of heat

Sea temperatures broke records every day over the past year, hitting marine life hard and driving a new wave of coral bleaching. China's President Xi Jinping visits Serbia. A BBC investigation uncovers clear ties between members of Germany's AfD party, and former neo-Nazi networks. Russia's last Eurovision contestant says she won't stop protesting against the war in Ukraine. And how a peanut and milk allergy trial is transforming lives.