Mark Stephen speaks to Josh Donaldson from Arbroath who became a Tick Tock sensation after posting videos of him clearing up litter from his local forests, beaches and streets. As well as coming across the usual litter such as plastic bottles, cans and crisp packets, he’s even found a grenade. Now with a following of 1.5 million fans as far as the USA and Vietnam, Josh is motivating thousands to do the same.