Science

The former regulators' warning comes in the wake of the U.S. Environmental Protection Agency's announcement to roll back dozens of air and water protections.

The head of the Environmental Protection Agency has announced a series of actions to roll back landmark environmental regulations.

Coatesville, Doylestown, Audubon, New Hope and Solebury water providers are among 22 that fail to meet state requirements to reduce the “forever chemicals” in drinking water.

El estudio está ayudando a dar forma al plan de Wilmington para reemplazar las viejas tuberías.

More than 2,000 rallied in Philadelphia as part of a nationwide protest that included almost every state in the U.S.

We explore the connection between how we look and how we feel.

Some scientists and government agencies are concerned over the test’s impact on animals, and whether it is still useful for research.

The students' study is helping shape Wilmington’s plan to replace the old lead pipes as city officials ask residents to help them identify more.

AI is upending forecasts for natural gas–fired power, including in the mid-Atlantic region. But new plants are a setback for climate goals, says a senior fellow at Penn.

The average ratepayer could face a monthly bill of about $91 starting in September, and almost $97 the following year if the increase is approved.

The creek is not used for drinking water, and officials say no other source of drinking water has been affected.

Elon Musk wants to cut funding for scientific research, but the weight loss drugs he promoted also came from government funded basic science.

The proposed project would have disposed of 5 million gallons of additional treated wastewater per day from the surrounding Lewes and Wolfe Neck communities.

Psychologist David Maloney, author of "Procrastination Decoded," shares his personal journey and methods for breaking the procrastination habit.

Rallies in Center City and at Rutgers University were part of a nationwide day of action to speak out against Trump administration cuts.