It asks major polluting countries to voluntarily reduce gases linked to what scientists call the greenhouse effect.

VOA: special.2010.01.19

But these actions are polluting an important source of fresh water.

VOA: special.2010.11.10

But first,we tell about a business that provides non-polluting transport services.

VOA: special.2009.12.04

Acquiring this simple and non-polluting form of electric light,he points out, promotes education, public health,economic security and a cleaner environment.

VOA: standard.2009.12.13

kerosene is expensive, produce only dim light and generate polluting fumes that cause health and environmental problems.

VOA: standard.2009.12.13