Environment & Science

Almost 100 volunteers on Saturday picked up litter at Monocacy Creek. Organizers said there was "lots of camaraderie” and enthusiasm.

The Allentown Environmental Advisory Council is examining three of the city's largest buildings to identify potential opportunities to boost efficiency and cut costs.

Lehigh Valley residents eager to begin their spring gardening are looking toward the last frost and freeze dates for the area — but they'll have to be patient.

Ruth Santiago, an attorney and environmental activist in Puerto Rico, is returning to the Lehigh Valley this month to speak to students and residents about alternative electrical systems and environmental equity amid climate change.

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.

The commonwealth is getting $265.9 million in federal funding to upgrade its aging water infrastructure. The state has the fourth most lead pipes in the nation, according to a recent EPA survey.

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.

Associated with an unusually strong geomagnetic storm, the northern lights were visible across our area Thursday night, even before the best viewing window advertised by the National Weather Service.

The Lehigh Valley is about to experience “a decidedly early November-like day,” according to the National Weather Service. A frost advisory has been issued from midnight to 9 a.m. Friday.

Hurricane Milton is expected to heavily disrupt air travel, including flights from Lehigh Valley International Airport to numerous destinations in Florida.

Da Vinci Science Center's newest exhibit, “Sharks,” will open Oct. 12. The display, organized by the American Museum of Natural History in New York, will offer "an up-close and personal look at one of the ocean’s most fascinating creatures — offering a jaw-dropping experience for visitors of all ages."

Short-term outlooks suggest a cold front will make steady progress across the area Monday, with a reinforcing cold front to follow later this week. It could push overnight temperatures into the 30s for the first time since late April.

Ian Fetterman, of Palmer Township, has taken his passion for Halloween and combined it with his artistic talents, carving out his own niche. Now, Ian’s Pumpkin Carvings has customers all over the U.S.

This week, our inner solar system has a visitor. It’s been visible through telescopes since its discovery last year by observers in China and South Africa.

Three proposed warehouse projects are on hold in Lowhill Township, the board of supervisors said at a meeting on Tuesday night. Two of the projects are in litigation; the third will be discussed at a hearing before the supervisors in November.

The regional wastewater plan is still underway in Lehigh County, as the sewer authority deals with aging infrastructure. Five open houses have been scheduled to collect residents' feedback.

After Hurricane Helene wreaked havoc in the south leaving many without power, PPL Electric Utilities announced linemen have taken to the South to assist with restoration efforts.

As special operations team coordinator for Lehigh County, Kevin Krotzer served as the lead instructor Tuesday for “Water Rescue for the First Responder,” an awareness-level program developed and certified through the Pennsylvania Fish and Boat Commission.

Local Red Cross volunteers are in Florida helping with Hurricane Helene relief efforts. The Lehigh Valley chapter's executive director says this one is different than other storm system cleanups he's witnessed.