Progress has also been made in pollution control ... emphasizing the complexity of managing the Yellow River's upper and lower reaches, left and right banks, and main and tributary streams.

The District of Columbia is suing the federal government over pollution in the Anacostia River, hoping it will lead to a cleanup of the urban waterway ...

Pollution fears surfaced when a river turned yellow-brown as it flowed through a popular tourist village in Eryri (Snowdonia). Hours earlier, the Afon Llugwy in Betws-y-Coed had been reported ...

The quality of the ecological environment in the Yellow River Basin has improved steadily ... work to protect the region's ecology and tackle pollution, aiming to promote the green transformation ...