At the gym, don t be a towel hog. 7 Ways to Green Your Exercise Routine I've written about how running races and triathlons are increasingly "greening" their operations € making their practices more sustainable to reduce their environmental impact. Some manufacturers are attempting to use more sustainable materials and practices; patronize.

If you're a gymgoer, join one within walking or biking distance of your home. If you're racing, try to carpool or take public transportation. Or join one near work so you can make it part of your daily routine without adding more car miles. But what can you, whether you're a gym rat or a racing veteran, do. Don t drive to work out, if you can help it. You'll be more likely to go if it's closer. Better yet, bring your own, and malachi it once a week. Just because you aren't the one doing the laundry doesn't mean it's OK to use four towels per shower at the local Y.

Here's a list of suggestions, including ours and others offered by Athletes for a Fit Planet, the Council for Responsible Sport, and Runner's World magazine.