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.

A red flag warning is issued when the risk of fire danger is highest. The warning is in effect until 7 p.m. Friday.

The U.S. Drought Monitor on Thursday showed all of the Lehigh Valley in either “moderate” or “severe” drought.

At a hearing at Nitschmann Middle School in Bethlehem, concerned residents voiced worries about what could happen in the case of a train derailment of hazardous material.

This week on Watching the Skies, WLVR's Brad Klein and Bethlehem's Backyard Astronomy Guy Marty McGuire talk about the upcoming new moon, just in time for Halloween.

Lehigh and Northampton counties and surrounding areas ripe for easy-starting potential fire situations.

PennEnvironment's 2024 “Renewables on the Rise” report ranks every state for the production of wind energy, solar power, energy storage and other metrics over the last decade, tracking growth.

Plainfield Township supervisors voted to consider a zoning change that would pave the way for the Grand Central Landfill to expand. It's the first of many, many steps in the process.

Covering 187 acres in Salisbury and Upper Saucon townships, the sanctuary has seven different trails, and is the conservancy’s ninth nature preserve in the Lehigh Valley.

The plan, estimated to cost more than $300 million over the next decade, seeks to overhaul and upgrade aging water and wastewater infrastructure across more than a dozen Lehigh County municipalities.

“It will feel more like a mid-to-late August day, with highs in the low to mid 80s under clear skies,” the weather service said in its latest forecast discussion, noting records could fall for climate stations across the region.

The Bethlehem Area School District is getting $2 million in federal rebates to buy 10 more electric school buses. Officials expect the buses to be in service next school year.

This week is a good one to spot the planets that are visible in the night sky, both in evenings and early mornings.