Environment & Science

Will the Lehigh Valley see a white Christmas? It could happen, forecasters say, but there's a larger concern from a very 'complex' storm that's taking shape — and coming this way.

The annual tradition for many doubles as a science fair you can take part in.

The Lehigh Valley is under a winter weather advisory from 5 a.m. to 5 p.m. Thursday for a mix of snow, sleet and freezing rain.

Many of the Lehigh Valley's tree farms are already sold out for the season, and farmers say the shortage shows no sign of easing any time soon.

A professor at Lehigh University breaks down what a recent, and historic, breakthrough in fusion ignition might mean for the future of clean energy and the potential student interest in the topic.

Love it or hate it, Lehigh Valley residents will likely see a wintry mess from a significant coastal storm coming later this week. Get the latest on timing, expected precipitation and more.

Marley Wait, of Macungie, is a cadet at United States Military Academy West Point. She was named one of the 40 students to win a prestigious Marshall Scholarship to support her studies when she graduates this spring.

Forecasters say where the storm tracks is going to be key to what we get in the Lehigh Valley, as well as the transfer of energy from the primary storm system to a secondary system. That will produce a coastal storm that will likely impact the area Thursday into Friday as it tracks north along the coast.

The real specimens that will be on display at Da Vinci Science Center are designed to compare and contrast healthy bodies and organs with those that are diseased, with an emphasis on common ailments along with cardiovascular issues and dementia.

PennDOT will spend millions of dollars to start construction on major transportation projects including bridges, traffic circles, milling, paving and patching roadways and updating interchanges.

State transportation officials on Wednesday held an online public forum to answer questions from residents about their 12-Year Program, a planning and funding tool for state-owned road and bridge projects.

The Lehigh Valley is under a red flag warning Wednesday, and officials say critical fire weather conditions are expected.

Excessive road salting during the winter months can negatively impact the environment and local infrastructure. A nonprofit is working to collect salinity data from waterways.

PennEnvironment launched an interactive map of efficient and renewable energy projects across the state. Here are the Lehigh Valley projects included.

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.