How Mount Everest become an overcrowded tourist destination - The

Interest in the mountain spiked amid a Cold war thaw, the commercialization of climbing and a best-selling book.

Mt Everest: Overcrowding at the top of the world must be regulated

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Overcrowded Mount Everest expeditions are ruining the mountainside

Death on Everest: the boom in climbing tourism is dangerous and

Climate change, crowding imperil iconic route to top of Mount

22 Places That Have Been Ruined by Tourists Over the Past Decade

Mt Everest: Overcrowding at the top of the world must be regulated

Mount Everest - Climbing, Records, Deaths

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American mountaineer dies during climb to Mount Everest