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.

Early Tuesday, Jared Isaacman, a billionaire entrepreneur who has a home in the Lehigh Valley, launched into space for a second time as part of a mission dubbed Polaris Dawn. The launch was visible in the area.

Awardees of the state Department of Education’s Environmental Repairs Grant program were announced Monday. It focuses on eliminating lead, mold, asbestos and other environmental hazards from school buildings.

Brad Klein reviews the week’s astronomical highlights with Bethlehem’s ‘Backyard Astronomy Guy,’ Marty McGuire. This week should be a good one for viewing the planet Saturn.

Easton's Nurture Nature Center has been recommended for conditional approval for its proposed planetarium, or "immersive dome," intended to expand programming capabilities.

Among the winners are projects to repaint the basketball court at Building 21; build several community gardens; and plant trees.

The PennEnvironment Research & Policy Center on Wednesday held a news conference at the city’s Sculpture Garden announcing the nonprofit’s new report, “Lead in School Drinking Water.” Bethlehem Area School District was found lacking.

Forecasters are increasingly confident that two storms will not become one over the weekend, and that's a benefit to the Lehigh Valley. Instead of a more intense rainfall, we'll have a wet Saturday and a beautiful Sunday on tap.

Will it be Woody, Tupaca, or Zurg? Lehigh Valley Zoo is enlisting the help of the public to help name its baby alpaca.

Bethlehem Township Board of Commissioners will advertise an ordinance to let the Municipal Authority get a loan to help mitigate flooding.

State officials announced a $1 million pool for the 2025 Environmental Education Grants Program, as well as the Nov. 15 deadline to apply. Two Lehigh Valley projects were funded in the last round.

This week, news from the International Space Station, where the seven crew members have been hosting two unexpected guests for months.

Staff and volunteers at the sanctuary have monitored the autumnal migration since 1934 as part of conservation research efforts. It’s the longest-running raptor migration count in the world.