NEPAL Rolwaling Valley -- 16 Apr 2005 -- Brown haze air pollution visible at high altitude from a helicopter in the Rolwaling Himalaya of Nepal.

NEPAL Rolwaling Valley -- 16 Apr 2005 -- Brown haze air pollution visible at high altitude from a helicopter in the Rolwaling Himalaya of Nepal. Brown haze smog and other air pollution produces scenes like this most days and is thought by some scientists to be contributing factor to the demise of the great Himalayan glaciers -- Picture by Jonathan Mitchell/Atlas Photo Archive