Chicago Tribune: Can your workouts be more eco-friendly? Yes. Here are 5 ways.

Here are five ideas for a more sustainable workout -- and a couple more if you want to push harder.Here are some ideas for a more sustainable workout — for you and, perhaps, the planet. [By Author: By Mary MacVean] http://chicagotribune.feedsportal.com/c/34253/f/622900/s/3994b99d/sc/14/l/0L0Schicagotribune0N0Chealth0Cla0Ehe0Eeco0Efitness0E20A140A4190H0A0H270A0A6230Bstory0Dtrack0Frss/story01.htm

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