Washington, August 20 : A new research has found that pollution in southern Greenland was higher 100 years ago than today.
The study, titled “Coal Burning Leaves Toxic Heavy Metal Legacy in the Arctic,” was conducted by the Desert Research Institute (DRI), Reno, Nevada, and partially funded by the National Science Foundation.
Detailed measurements from a Greenland ice core showed pollutants from burning coal - the toxic heavy metals cadmium, thallium and lead - were much higher than expected.
The catch, however, was the pollutants weren’t higher at the times when researchers expected peaks.