It also found nearly 250,000 cases of asthma every year were caused as a result of the air pollution from coal-based steel, such as at U.S. Steel's Mon Valley plants.
Whether they chose President-elect Trump or Vice President Harris on election day, Pennsylvania voters had a variety of views when it came to climate change and the environment.
Four university studies funded by the National Science Foundation find new chemicals, and call for better environmental testing and communication after last year’s Norfolk Southern train derailment.
After the Homer City coal-fired power plant closed last year, residents of the Indiana County community are trying to make a go of tourism by cleaning up its legacy pollution.
More than 70% of homes in Pennsylvania are estimated to have been built before the 1978 lead paint ban, leaving many kids vulnerable to lead poisoning.
Twenty years after the state's first shale gas well was drilled, jobs comprise less than 1% of the workforce, residents fear health impacts and environmental damage continues.