The recent photo of a snaking queue of climbers waiting to reach the top of Mount Everest worried many, suggesting the world's highest peak was becoming another tourist trap. But the heavy traffic -- and resultant ecological damage -- might be the least of the Himalayan range's troubles.
Opinion
Himalayan states must unite to protect mountain environment
Time for a Himalayas Council to manage and safeguard vital water supplies
As global average temperatures warm, glaciers are retreating. © Reuters
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