Why the mighty Himalayas are getting harder and harder to see4 days ago Share Save Navin Singh Khadka Environment correspondent, BBC World Service Share SaveBBC Trekking in Nepal's Annapurna region, where haze obscures visibility of the epic mountains even at close rangeI grew up in Nepal's capital watching the Himalayas. "Our member trekking operators are getting depressed because no sighting of the Himalayas means no business. The western Himalayas in Pakistan have been relatively less affected by the haze because the mountains are relatively far from cities. Weather conditions keeping warmer air above cooler air trap these pollutants and limit vertical air movement - preventing pollution from dispersing. This could mean the scintillating view of the Himalayas could now largely be limited to photographs, paintings and postcards.