World What’s causing Mount Everest’s deadly season? Overcrowding, inexperience and a long line to the top May 29, 2019May 29, 2019Ryan W. Miller and Miles Blumhardt, USA TODAYComments Off on What’s causing Mount Everest’s deadly season? Overcrowding, inexperience and a long line to the top At least 11 people have died climbing Mount Everest this year. Many blame Nepal's permit system for overcrowding, though inexperience is also a cause.