News tagged with polluters

Sharks contain more pollutants than polar bears

The polar bear is known for having alarmingly high concentrations of PCB and other pollutants. But researchers have discovered that Greenland sharks store even more of these contaminants in their bodies.

Apr 15, 2014
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A climate idea comes of age: Zero emissions

Pulling a worn, yellowed copy of the 1992 U.N. climate change convention from her handbag, Farhana Yamin points to the paragraph that states its goal: To stabilize greenhouse gas concentrations at a level ...

Dec 10, 2014
2.8 / 5 (8) 3

Coming up for air

Sometimes you've got to hit bottom to battle your way back up. In 1992, the United Nations cited Mexico City as having the worst air quality in the world, with so much pollution that birds sometimes dropped ...

Oct 29, 2014
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