Facing climate change in the shadow of Mount Everest Formed in the shadow of Mount Everest, the turquoise depths of Nepal's Imja glacial lake would be a breathtaking miracle of nature to behold -- were they not a portent of catastrophic floods. Scientists warn that as climate change causes Himalayan glaciers to melt at an alarming rate, lakes like Imja could swell further and eventually collapse, triggering a deluge in Nepal, an impoverished nation at the mercy of a warming planet.IMAGES AND SOUNDBITES.