Pollution crosses oceans and continents
A car pumps out exhaust fumes in Washington or New York, and five days later a hiker in the Lake District or on the Sussex Downs finds his or her lungs are hurting. Scientists believe that polluting
A car pumps out exhaust fumes in Washington or New York, and five days later a hiker in the Lake District or on the Sussex Downs finds his or her lungs are hurting. Scientists believe that polluting