Environment & Science

PJM Interconnection, the regional grid operator headquartered in Valley Forge, issued a maximum generation alert and load management alert for Monday.

The first day of summer can be told by the sun's position, as well as the calendar.

Presented in partnership with the Nurture Nature Center, it’s the city’s first free Sustainability Movie Night, an effort organizers said aims to bring the community together for conservation education.

With the Lehigh Valley under an extreme heat warning next week, Allentown is offering free pool admission. Find out other ways to beat the heat.

The Delaware River was chosen as the commonwealth’s River of the Year. It was celebrated Wednesday with a festival.

Easton late last month became the third major city in the Lehigh Valley to seek certification through Bird Town Pennsylvania, an annual designation focused on community-based conservation.

Tick season is in full swing in the Lehigh Valley. In addition to blacklegged ticks, those most often associated with Lyme disease, the invasive Asian longhorned tick also calls the Valley home.

Spraying began 8 a.m. Tuesday. Black flies have been a recognized pest of humans and livestock in Pennsylvania since the 1970s.

The center’s Board of Trustees said it will form a search committee this summer to begin the process of selecting Erickson’s successor, with the goal to announce a new CEO by spring 2026.

Pocono Wildlife Rehabilitation and Education Center has a new fawn hotline, where a fawn specialist will help callers quickly determine if a newly found fawn needs help, or needs to be left alone.

Da Vinci Science Center's newest exhibit, “Sharks,” will open Oct. 12. The display, organized by the American Museum of Natural History in New York, will offer "an up-close and personal look at one of the ocean’s most fascinating creatures — offering a jaw-dropping experience for visitors of all ages."

Short-term outlooks suggest a cold front will make steady progress across the area Monday, with a reinforcing cold front to follow later this week. It could push overnight temperatures into the 30s for the first time since late April.

Ian Fetterman, of Palmer Township, has taken his passion for Halloween and combined it with his artistic talents, carving out his own niche. Now, Ian’s Pumpkin Carvings has customers all over the U.S.

This week, our inner solar system has a visitor. It’s been visible through telescopes since its discovery last year by observers in China and South Africa.

Three proposed warehouse projects are on hold in Lowhill Township, the board of supervisors said at a meeting on Tuesday night. Two of the projects are in litigation; the third will be discussed at a hearing before the supervisors in November.

The regional wastewater plan is still underway in Lehigh County, as the sewer authority deals with aging infrastructure. Five open houses have been scheduled to collect residents' feedback.

After Hurricane Helene wreaked havoc in the south leaving many without power, PPL Electric Utilities announced linemen have taken to the South to assist with restoration efforts.

As special operations team coordinator for Lehigh County, Kevin Krotzer served as the lead instructor Tuesday for “Water Rescue for the First Responder,” an awareness-level program developed and certified through the Pennsylvania Fish and Boat Commission.

Local Red Cross volunteers are in Florida helping with Hurricane Helene relief efforts. The Lehigh Valley chapter's executive director says this one is different than other storm system cleanups he's witnessed.

As of Monday afternoon, mile markers 94.2-97.13 of the D&L Trail in East Penn Township remain closed because of a sinkhole.

The state Department of Environmental Protection will hold a public hearing from 6 to 9:30 p.m. Oct. 28 in Bethlehem to take public testimony about Keystone Cement Co.’s hazardous waste permit renewal application.

A look at NASA's latest space mission that could launch in early October.