Environment

TerraPower Isotopes will manufacture a rare, radioactive isotope for use in developing cancer treatments.

The site’s former operators will pay $11.4 million to pay for the cleanup. Plans to build townhomes on the site remain in limbo.

Parker’s $7 billion budget proposal would continue existing efforts to combat litter and illegal dumping and add funding for 125 cameras.

Piles of scrap metal burned for more than 24 hours in the Delaware Bay. The barge is owned by the Camden scrapyard EMR, which will be taking the cargo.

Firefighters are battling a massive scrap fire on the barge, which is in the process of getting towed to the New Jersey side of the bay.

US gas prices join a host of other rising costs faced by American drivers. What's behind this affordability crisis?

The $9 million in additional funds will help mitigate flooding. Nearby residents have worried that restoring the Cobbs Creek Golf Course would exacerbate the problem.

Gardeners learn how to be more sustainable while adapting to climate change during the Philadelphia Flower Show.

The invasive Hessian fly spurred suspicions of biological warfare, threatened the new nation’s economy and inspired the nation’s first citizen science project.

A school district leader told Lankenau students and staff that no final decisions have been made about closures during a press conference Wednesday.

The sponsor of the proposed incineration ban pulled the bill from a vote at the last minute in January once it appeared to lack support.

President Trump said in his annual State of the Union address that he made deals with data centers to tamp down electricity costs for consumers. But there are few details.

But meteorologists say records for total snowfall during a single snowstorm or winter are unlikely to fall.

The federal government will no longer regulate greenhouse gases, including emissions from cars, trucks and power plants, in a huge reversal for climate policy.

The network will offer hourly air quality index updates posted to a new website, Breathe Philly.