It’s 70 years since a New Zealand mountaineer and his Nepali-Indian Sherpa mountaineer guide reached the highest point on Earth. There have been celebrations in Nepal in recent days to mark the anniversary. Thousands of people have followed in their footsteps but this climbing season on Mount Everest is drawing international attention for the record number of climbers and the increased deaths on the mountain. James Reynolds hosts conversations that give us an insight into one of the toughest challenges on the planet, as well as the challenges posed by climate change and the overall impact on those who rely on the mountain to earn a living.