Putin declares state of emergency after massive fuel leak pollutes river in the Arctic Circle
Russian President Vladimir Putin has declared a state of emergency in the Siberian city of Norilsk after a massive fuel leak spilled into a river. Environmentalists call it one of the worst ever seen in the Arctic.
Scientists tackle starfish plagues on endangered Great Barrier Reef
Crown-of-thorns starfish are the second biggest threat to the already endangered Great Barrier Reef — the world’s largest coral reef system, right behind tropical cyclones. Over the past decades, they have attacked the reefs in waves of outbreaks.