SEOUL: A streak of super-hot tropical nights is set to break a century-old South Korean weather record, according to official data released on Wednesday (Aug 14), as the peninsula bakes in a prolonged heat wave. North Korean authorities also issued a warning over "fierce heat" with temperatures of up to 37 degrees Celsius, as AFP images showed Pyongyang residents using umbrellas and portable fans to keep cool. Much of the world is enduring a summer of extreme heat, with United Nations Secretary-