Poop lights?

This dog poop-powered lighting is goofy, but is worth thinking about.  Dog poop is a perennial nuisance in city parks, and invariably a topic of discussion in any citizens’ park group (1st Rule of Park Meetings:  When someone raises the topic of poop, the meeting is over.).  An on-site methane-digester, hand-cranked by yuppie dog owners might just be the incentive needed to get folks to do the doodoo clean-up that every dog park needs.  I hope Popular Science does a follow-up with facts and figures to show how effective this gizmo is.

Tip from the Geek Press.