High altitude Weather God who got fed up with humans messing about with his nice clean snow. He also didn’t see why they should be burning things to keep warm.
Some kind of compromise was reached when he directed them to the cocaine plant. After a few nibbles of that, they didn’t care how high they were or what the weather was like. They also became very protective of the snow. So it looks like KHUNO was the world’s first drugs dealer. Is it any coincidence that ‘snow’ is a nickname for dodgy powdery stuff?