Ban Ki Moon, the secretary general of the UN, is emerging as a real champion of action on climate. In recent days he’s told the rich countries they need to offer more aid to poor nations, and he’s pressed hard to try and make Copenhagen a significant meeting with a binding and ambitious outcome. Why is he so energized? In part because he’s actually gone out to see what’s happening on his planet. Here’s a video his staff at the UN just sent over, from his trip to the Arctic in September