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.

Promise Corps, an Allentown group, came together over the last few months to clean up Black River Sanctuary as it is set to open in spring 2023.

Giana Jarrah wins StartUP Lehigh Valley's grand prize with her women's health brand With Meraki Co.

A report by the research and advocacy group PennEnvironment analyzed samples from 50 of Pennsylvania's cleanest waterways, only to find different kinds of microplastic residue in all of them.

An event featured speakers from the Lehigh County Conservation District, Penn State Extension, and Lehigh County Water Authority to show homeowners how they can best mitigate excessive runoff on their property.

As contracts between some municipalities and service providers in the Lehigh Valley expire near the end of the year, the new agreements that replace them could amount to major price hikes.

The Sept. 11th National Memorial Trail which runs through Palmer Township could see trail improvements through state grant

The school district is expected to get two electric vehicle school buses as part of a pilot program.

Bethlehem residents may soon be able to get permits to keep backyard chickens. Two committees agreed the concept is a good one, but some officials still worry about the spread of avian disease and other issues.

A high school in Allentown was designated a K-12 Tree Campus and hoisted a new flag in celebration.

Amid a changing weather pattern, the Lehigh Valley is under a freeze warning Tuesday into Wednesday. Is this wintry feel a sign of things to come?

A bear was seen in a backyard in Palmer Township Saturday.

Lehigh Valley's 'Spooktacular' Hot Air Balloon festival is on Friday through Sunday and there's a lot more going on than just balloons