Environment

Tmunity Therapeutics, with ties to Penn Medicine, once raised $231 million from investors. Now workers and its Center City office are gone.

Seaside sparrows at Cooks Beach have their own “dialect.” Rowan University researchers monitor their songs as a way to track salt marsh health.

The new legislation increases fines for environmental violations and directs the money to impacted communities.

resourcePhilly is a search engine that allows Philadelphians to find places to bring hard-to-recycle items or donate items, among other features.

It’s day seven of the Philadelphia union strike, and trash is piling up across the city residents think about the amount of garbage they create.

The highest concentrations of PFAS were detected in Southeastern Pennsylvania.

A study by researchers at the University of Pennsylvania found composting and feeding food waste to animals would cut carbon emissions.

When temperatures spiked last month, so did air pollution. Here’s why.

PGW sought emails, texts and memos from climate groups that are participating in its ratemaking case. The PUC ruled that would violate the First Amendment.

The district’s agreement with DOJ to delay prosecution of criminal charges describes asbestos issues at 31 schools.

Landlords would be required to certify their properties are lead-free, or safe from the toxin.

Regulations demanding Delaware water providers test for PFAS would take effect a year before federal requirements.

Grants focus on creating legal dumpsites for residents and small haulers.

The funding includes more than $36.9 million for Pennsylvania and more than $9.8 million for Delaware.

Sniffer dogs at Lincoln Financial Field were outfitted with brightly colored booties amid soaring temperatures in the region.