Industrial countries must reduce environmental pollution and sign the Kyoto Protocol.

About one-third of the food eaten by Americans comes from crops pollinated by honey bees, including apples, melons, cranberries, pumpkins, squash, broccoli, and almonds, to name just a few.

Her latest book deals with pollution.

Travelling by bus or bike, you could pollute less.

Holding the Olympics where there's severe atmospheric pollution gives rise to a great risk for athletes.

Air pollution will be a threat to our survival.

The poll was taken yesterday.

Is there a machine more polluting, noisier or which takes away more jobs than a leaf blower?

Pollutants like this derive mainly from the combustion of fuel in car engines.

Castor and Pollux were twin brothers.