Nepal's tourism industry, largely driven by Himalayan treks, accounts for around 10% of its GDP. Everest alone is a multimillion-dollar industry, fueled by Westerners with a thirst for conquest and $100,000 to burn. What was once a desolate landscape is now littered with tonnes of oxygen tanks, thousands of pounds of frozen excrement, and 200+ dead bodies. In the last 20 years, Everest has seen nearly a 10 times increase in traffic — with more than half of the summits coming in the last decade.