Climate Change  This is now the deepest lake in Iceland, thanks
to melting glaciers  Why stars wore green ribbons at the Emmys
Are we ready for 'gray swan' storms?  David Letterman to tackle
climate change on 'Years of Living Dangerously'  Prophetic
horsemen sculptures emerge from the River Thames  Artists unite
to record a 'Love Song to the Earth'  Heartwarming 'Chloe and
Theo' stands tall on humanitarian, environmental themes  Obama,
Bear Grylls to swap survival tips in Alaska  Health care and
climate change go hand in hand  What if our pain is a penguin's
gain?  What is the U.S. Clean Power Plan?   Freaks of Nature
Stories You Won't Believe