water pollution

Hundreds of swimmers took part Sunday in a new version of Hong Kong's iconic harbor race, which had been suspended for 33 years because of concerns about water pollution in one of the world's most beautiful ports.

Li Li, a painter and animal rights activist, uses his art and street activism to speak on behalf of China's endangered wildlife, which is threatened by air and water pollution.

Pollution experts on Tuesday pressed a congressional panel for stronger action to keep pharmaceuticals and other contaminants out of the water, saying they are hurting fish and may threaten human health.