‘I saw the best of humanity’: Trekker Karl Bushby on his 28-year walk home

"They say it takes a village. In this case, it took a world." After 28 years and some 50,000 kilometres, British explorer and adventurer Karl Bushby has returned to his hometown of Hull, completing an extraordinary life journey across four continents that illustrates not only the limits of human endurance, but also the intricate relationship between individual determination, geopolitical constraints and a world of humanity.