I don't know what it's like where you live, but outside my window there's very little green to be seen. Everything is covered in a thick and frosty layer of white. But just because you don't see much green, doesn't mean you can't go green when it comes to winter sports. As an added perk ... you'll end up with more green in your wallet.

• Rent. If you hit the ski hill only once or twice a year, you really don't need to own your equipment.
  
• Buy used. Ebay, used sporting goods stores, and sites likes Craig's List and Freecycle are great places to search for sports equipment. Keep your eye out for skis, snowboards, skates, hockey gear, and other winter treasures.
• Equipment swap. Many ski clubs hold equipment swaps where you can bring in your unused gear and look for something new (to you, anyway). If you have a child on a hockey league or other winter sport, consider setting up an equipment swap with other parents.

If you've got old equipment that's really not fit for use anymore, try to find a new purpose for it and keep it out of a landfill. I unloaded a ridiculously old set of skis on Freecycle last fall; the person who picked them up is going to attach them to the bottom of a large crate so he can easily tow his gear across the ice on his way to his ice-fishing shanty. You just never know what use people can get out of old items.