Nirmal Purja, went viral.It threw a spotlight on concerns that had been growing for some time among those familiar with the climbing scene in Nepal and Tibet, but shocked the rest of the world.
A combination of global warming and over-tourism has been having a detrimental impact on Everest and other Himalayan mountains.Seen as the ultimate 'trophy trip', unscrupulous tour operators have increasingly been taking inexperienced, ill-prepared climbers up Everest, resulting in a dramatic rise in both pollution and climber deaths.
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