Environment & Science

With the Lehigh Valley under an extreme heat warning through Wednesday, area doctors are urging residents to keep hydrated and stay cool.

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.

The 110th PA Farm Show opens this weekend in Harrisburg. While this year's theme is “Growing a Nation,” officials are also spotlighting the crucial role of women in agriculture.

The Dorothy Rider Pool Wildlife Sanctuary still is closed to the public after an April bridge collapse. Officials said a new, permanent bridge is slated to be installed in spring.

This week on Watching the Skies, Brad Klein and Marty McGuire talk about Jupiter: shining its brightest this week.

Co-hosted by a father-daughter duo, the show is focused on renovation, but the pair said they also wanted to create family-friendly entertainment while working to preserve existing farms from development.

Of the thousands of stories covered and told in 2025, our staff picked some of their favorites. They included a bald eagle looking for love in the Hellertown area and an $11 million "sky dome" planned for Easton.

In 2025, LehighValleyNews.com readers gravitated toward stories that reflected mounting economic pressure, public safety concerns, environmental uncertainty and moments of sharp civic tension.

“If it does come down in any area, which most areas will see at least some snow showers from it, it is going to stick everywhere," one local forecaster said.

Weather was the main culprit for thousands of power outages that spanned the region early Tuesday.

Beginning at 10 a.m. Tuesday, Jan. 6, 2026, the office will transition away from the traditional, chronological structure of the area forecast discussion.

This week, a suggestion for how to enjoy the view from the International Space Station, without the expense and arduous training needed to become an astronaut.

For the first time, all three of the Lehigh Valley’s cities have a sustainability manager or coordinator, a role dedicated to sustainability initiatives and fighting the worsening impacts of climate change.

Keith Lampman-Perlman, who often goes by “KLP,” recently was appointed as the 176-year-old cemetery’s new executive director, a role focused on community engagement, preservation and fundraising.