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.

The spring migration count at Hawk Mountain has begun. So far this season, 137 birds of prey have been recorded.

Allentown’s Cedar Creek Park was covered Thursday in lesser celandine, a low-growing, mat-forming flower that’s been flagged by the Department of Conservation and Natural Resources.

It’s not unprecedented, but it is a little bit too early for the kind of warmth the Lehigh Valley will see next week, said meteorologist Bobby Martrich.

The U.S. Environmental Protection Agency on Tuesday released the results of the agency's "7th Drinking Water Infrastructure Needs Survey and Assessment." Pennsylvania ranked only behind Florida, Illinois and Ohio for the most lead service lines.

Firefighters battled a massive fire at a warehouse in West Easton early Tuesday, with multiple explosions heard from the property. The fire was declared under control after more than five hours.

A new North Whitehall Township plan that considers building a skate park, amphitheater, disc golf, splash pads and more as outdoors activities increase got township supervisors' approval Monday.

The Monocacy Creek Watershed Association and Bethlehem's Environmental Advisory Council are hosting a spring clean-up April 8 at Monocacy Creek. Last year, volunteers collected more than 2,000 lbs. of garbage.

A line of storms that spared the Lehigh Valley on Saturday raked the Philadelphia region and surrounding areas, with eight tornadoes confirmed by the National Weather Service.

Two of the Lehigh Valley's major cities are considering bans on single-use plastic bags. Here's where the proposals stand.

Panera Bread recently announced a new technology partnership with Amazon, which will allow loyalty members to use their palms to pay and ordering through select Alexa devices. It's unclear when they changes will comes to the Lehigh Valley.

The Lehigh Valley is under a severe weather threat Saturday that includes the possibility of tornadic activity in the region.

Take a look at stories throughout the week of which we are most proud, had a profound impact on readers or that you might want to look at again.