Some ideas to go greener (and healtier):

The No Impact Experiment is a one-week carbon cleanse.  It is a chance for you to see what a difference no-impact living can have on your quality of life. It’s not about giving up creature comforts but an opportunity for you to test whether the modern “conveniences” you take for granted are actually making you happier or just eating away at your time and money.

More at No Impact Project