Volunteer group helping to reduce trash along Yangtze River

Every morning at 7 am, Li Shuangxi and his wife can be seen bending over, standing up and bending over again on the marshlands of the Yangtze River in Yichang, Hubei province.

The couple are not doing their morning exercises. As their rubber-gloved hands and the plastic bags slung over their arms indicate, they are picking litter along China's longest river.

They are joined by a dozen other people. Bags of trash begin to pile up by the roadside, waiting to be collected and sent to collecting stations. Less than an hour later the group leaves, disappearing into the flow of morning commuters.