http://www.worldwildlife.org/threats/pollution the air, the water and the soil Pollution Threats – WWF dead zones where nothing can live Pollution Threats (WWF) one billion thousands of species Pollution Pesticides and fertilizers https://worldwildlife.org/threats/pollution dead zones where nothing can live Pollution Pollution dead zones where nothing can live https://worldwildlife.org/threats/pollution dead zones where nothing can live worldwildlife.org/threats/pollution WWF Threats one billion WWF Threats the air, the water and the soil Pollution Air pollution the air, the water and the soil the air, the water and the soil one billion pollution dead zones where nothing can live dead zones where nothing can live one billion Pollution | Threats | WWF World Wildlife Fund industrial pollution Pollution | Threats | WWF WWF dead zones where nothing can live pollution http://worldwildlife.org/threats/pollution World Wildlife Fund the air, the water and the soil 2.4 billion people algae produce harmful toxins