We all know that climate change is causing the polar ice-cap to shrink, threatening small islands with extinction and devastating populations with drought. But how many of us have heard of a tsunami from the sky? That is what is threatening one small Himalayan country, Bhutan.   Then, hear the story of a remarkable man who devoted himself to rescuing and healing some of the largest and fiercest creatures in the world. Kenyan Zahoor Kashmiri, simply could not bear to see animals suffer. His passion was to have fateful consequences.