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.

An extreme cold warning, combined with a wind advisory also in effect, could mean wind chills as low as 20 degrees below zero for the region this weekend.

A webinar Monday brought together regional planners, engineers and industry leaders to explain how data centers operate and what their growth could mean for local communities.

Protein is king in the world of nutrition at the moment, but there are plenty of questions surrounding the trend. Let's take a look at what it is, where to get it from, and how to navigate the complex world of nutrition.

Month-to-date snowfall in the Allentown area now stands at 20.8 inches, nearly triple the normal January average of 7.7 inches, according to the National Weather Service.

The storm dropped a record 11.8 inches of snow on Lehigh Valley International Airport, breaking the old record of 10.4 inches for the date set in 1988.

Forecasters say the Lehigh Valley region could see 10 to 16 inches of snow and sleet accumulations, with a wintry mix of snow and sleet expected Sunday afternoon and evening. A winter storm warning remains in effect into Monday afternoon.

Lehigh Valley shelters are adding capacity as meteorologists forecast between 10 and 16 inches of snow starting Sunday.

Forecasters now expect widespread snow totals of 12 to 18 inches across much of the region, with locally higher amounts possible. The warning replaces the earlier watch, signaling that severe winter weather is now considered imminent.

Lehigh County Coroner Dan Buglio announced that a 93-year-old Lower Macungie Township woman died outside her home of hypothermia. She is Lehigh County's first weather-related fatality of 2026.

Allentown declared a snow emergency ahead of Sunday's major winter storm. Enforcement efforts in the city will begin Saturday morning.

Residents of South Whitehall Township voiced their opposition to a proposed 5-million-square-foot data center near Parkland High School.

In a briefing package released early Thursday, the National Weather Service put the low end amount expected in the Lehigh Valley around 8 inches. But a “reasonable worst case” would see the area receive as much as 21 inches of snow.