Has spent two decades studying the world with a camera. A self-taught photographer, filmmaker, writer and public speaker, has travelled on assignment to over 75 countries for the National Geographic Society, Smithsonian, Outside, Esquire, Microsoft, The Nature Conservancy and others. Spent a decade documenting remote expeditions from Everest to Antarctica as a photojournalist; became frustrated with the short lifespan of magazine stories and decided to focus cameras closer to home on the Colorado river. Four years and 1,500 river-miles later, produced an acclaimed book, “The Colorado River, Flowing Through Conflict”, three award-winning documentaries and co-hosted a PBS TV programme. Other watersheds soon called, including a source-to-sea look at India’s sacred Ganges River. Latest project, replaced rafting with walking: hiked the entire length of Grand Canyon National Park – over 700 miles without a trail. Moving on foot between the river and rim “was a remarkable blister builder”, but it had a purpose to highlight the challenges national parks are facing as increased development pressures are poised to change the canyon’s iconic landscape. Named “Freshwater Hero”, The National Geographic Society; also called the “Lorax of Rivers”; after completing the Grand Canyon journey, listed as “Adventurer of the Year”, by National Geographic.