Science

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.

Although bipartisan support for fracking remains high among public officials, Pennsylvania voters continue to be divided and support increased regulation.

Historic dams along the Brandywine River are helping the museum get off the electrical grid.

Once the site of America’s worst nuclear accident, Three Mile Island may get new life as a power source for Microsoft data centers. Is it key to our green energy future?

The lightning bugs’ habitat is being threatened by development and climate change.

The project would be built 40 miles (65 kilometers) off Long Beach Island and would consist of up to 100 turbines, enough to power 1 million homes.

More than one in seven outdoor workers faced heat-related symptoms on the job last year, according to a survey by a research nonprofit.

Red Clay Creek, which provides drinking water for residents in the Stanton area, had some of the highest PFAS levels detected.

Researchers say the study is one of the first to evaluate the specific causes of salty water within a smaller watershed.

The university received a $3.2 million grant from the National Institutes of Health, which will fund the five-year study.

A French biotechnology giant just opened a molecular and genomic innovation center at Philly’s Navy Yard after acquiring a homegrown startup.

Delaware is the lowest-lying state in the U.S., leaving it vulnerable to the effects of climate change, lawmakers and advocates say.

Synthetic dyes are often petroleum-based and pollute waterways. At a former dairy farm in Lancaster County, Pa., flowers, plants and kitchen waste color clothes naturally.

The box tree moth, which originally hails from Asia, has only one victim: boxwoods, a non-native shrub commonly used for hedging and topiary.

A national nonprofit found Black and Hispanic households spend more of their income on energy than households overall.