Air Pollution

When the town of Clairton, Pennsylvania, was founded a few miles south of Pittsburgh at the start of the 20th century, the only thing there was a steel mill. “At the beginning of 1901, the town of Clairton was a field,” a newspaper article from 1904 explained. “The Clairton steel mill first began operations in […]

Frigid weather this month caused industrial facilities across Texas to release unplanned air pollution as machinery froze, power went out and icy conditions blocked service crews.  Over four chilly days between Jan. 14 and 17, companies submitted reports to Texas’ environmental regulator, the Texas Commission on Environmental Quality, that attributed at least 36 instances of “unintentional” […]

Canada’s tar sands have gained infamy for being one of the world’s most polluting sources of oil, thanks to the large amounts of energy and water use required for their extraction. A new study says the operations are also emitting far higher levels of a range of air pollutants than previously known, with implications for […]

The world’s greatest tropical rainforest continued to come under pressure in 2021, due largely to the policies of Brazilian President Jair Bolsonaro. Deforestation rates hit a 15-year-high, while fires flared up again, combining to turn Brazil’s portion of the Amazon into a net carbon source for the first time ever. But the rainforest as a […]