Studies revealed that dozens of children and young adults were diagnosed with Ewing sarcoma and other forms of cancer in a four-county area outside Pittsburgh.

A 2008 contract that would have made Delaware a pioneer in offshore wind evaporated. A 2018 study cited high costs, but a new law has the state pursuing the notion again.

The Philadelphia Energy Authority released a Request for Proposals Monday that could see 750 low- to moderate-income households get solar panels installed on their roofs.

The project is expected to cut the energy used by street lights in half, saving enough electricity annually to power nearly 3,700 homes.

The clean technology startup that builds wireless charging devices for large electric vehicles opened a new research and development laboratory in King of Prussia.

Shot in Fishtown, the film generated just 16 ounces of trash. A typical Hollywood film can produce a million pounds of waste.

The two new laws pave the way for more EVs on Delaware roads as advocates hope the state environmental secretary takes an even stronger step.

New Jersey Gov. Phil Murphy signed a law that allows one offshore wind developer — the Danish company Orsted — to keep tax credits it had agreed to pass on to ratepayers.

A civil rights investigation by the EPA over the city’s initial permitting of the facility is still ongoing.

A new analysis by Climate Central estimates the impact of elements of the built environment — like dark roofs and parking lots — on temperatures.

Thirty-two libraries and rec centers will have extended hours through Saturday so people can cool off. Utility shutoffs will be paused as well.

Exposure to toxic blue-green algae can cause organ damage in humans and kill pets.

Pay attention to emergency alerts, don’t drive into floodwaters, and get to higher ground if possible.

President Biden visited Philly to stump for new clean energy jobs in the region. He says a new vessel built at the Philly Shipyard will employ about 1,000 people.

Emergency management officials plan to use 13 libraries and 21 rec centers as cooling centers this summer.