You should ski as many days as you can, because we are not guaranteed a tomorrow. Do what you love doing. Any day your life could dramatically change, from new commitments to injuries.
Not to say that you are, but so many people get caught up and start worrying about this 'global warming'. Worrying is fretting over the inevitable. If you can't change it, then accept it and get on with life.
Is it so far off to believe that maybe global warming is nothing more than hype created by envirionmentalists in order to further push their ballot? The New York Times went on to say that not even the top scientists backing up these environmentalists are certain that global warming even exists. Think about it, the world has been around for a very long time. Far much longer than we have recorded temperatures for. It's true that the days have been getting hotter in certain areas, but last winter parts of the eastern US recieved more snow and colder temperatures than ever before. We could merely be in a warmer cycle that has been occuring in the world for thousands of years. Headlines read 'temperatures haven't been this hot since 1885'. Well, I ask you, how then did temperatures get so hot in 1885? According to statistics temperatures have seen record highs long before the industrial age. How many SUVS were there in 1885?
Also, remember it's documented that regions of the earth like Antartica that are today ice capped and frozen over, at one time were flourishing with trees, and warm weather. Why? Because the earth moves in cycles, that have been occuring long since we have been recording temperatures. Right now, we're in that cycle. Think about it.
Eat. Sleep. Breathe. Ski.