GREEN RUNNERS TAKE STEPS TO KEEP STREETS LITTER FREE

'Plogging', a combination of trash collection and jogging, is growing in popularity among socially aware fitness fans. Zhang Yangfei reports.

If you take a casual after-dinner stroll in downtown Shanghai on a Wednesday evening, you may bump into an unusual group of joggers.

They are easy to spot; each member swings a pair of long bamboo tongs back and forth in one hand, while holding a plastic bag in the other.