I grew up in Bozeman, and spent all my time away from school at Bridger Bowl. Standard procedure during a big powder day, or after a launch off of an unanticipated whatever was to move the goggle down a bit on the bridge of the nose while skiing down to the lift to allow more air to flow in. Then, while riding the chair up, put the goggle inside your coat to allow the body heat to warm the goggle up enough to even the surface temps of the lenses thus eliminating the fog. We didn't have high speed lifts, so the time on the chair was generally sufficient. I hope this helps! Another tactic that works is to dry rub some Ivory bar soap on the inside of the lens, then using a micro fiber clothe, polish the soap until clear. This adds a micro layer that will absorb moisture. It is basically a poor man's nog fog cloth.