Environment & Science

On Tuesday afternoon, Lehigh Valley International Airport recorded temperatures that tied the record heat set in Allentown over a century ago on June 24.

In addition to the Kline’s Island Sewer System, or KISS, regional wastewater plan, committee members advanced the Lehigh Valley Hazard Mitigation Plan to the full commission.

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.

Through April 25, a section of Institute Drive is closed in the Totts Gap Conservation Area. Officials aim to protect breeding frogs, toads and salamanders from being crushed by vehicle tires.

The spring equinox is right around the corner — this week to be exact. This week, Brad Klein and Marty McGuire talk about the upcoming celestial event.

A destructive storm system moving up the coast is expected to hit the Lehigh Valley on Sunday evening. The area likely won't see any severe weather today, but it is just bordering the potential to, graphics from the National Weather Service show.

Two bald eagles that shared a nest for years at Saucon Park in Bethlehem captured attention after the female bird died of bird flu last month. Now, the surviving male apparently has found a new mate.

Staff from Pocono Wildlife Rehabilitation and Education Center took the drive to feed and water the bird, a Micronesian kingfisher, before its rescheduled flight. The rare bird is native to Guam.

A handful of Lehigh Valley farms are feeling the impact of the federal funding freeze. It's also causing a Harrisburg nonprofit focused on sustainable agriculture to announce furloughs starting next month.

Ruffian Tittmann will start her job as executive director of the Allentown Parknership at the end of March.

Last year was a big year for dam removals not only in the Lehigh Valley, but across Pennsylvania. The state was ranked first in the U.S. for the most outdated, unsafe and uneconomical dams removed in 2024.

The Pennsylvania Invasive Replace-ive Program encourages property owners to remove invasive plants by offering native replacements, for free, during events in May throughout the state.

This week, a surprise twist on the total lunar eclipse visible from the Lehigh Valley in the early morning hours of Friday, March 14th.

An invasive insect known for its voracious appetite that can defoliate millions of acres of forest, spongy moths have been an annual blight on the Valley and the rest of Pennsylvania for decades.

Formed in 2008, local weekend event in May features separate day of beer and wine tastings, followed by a for-kids-only day of art and science fun.