Environment & Science

The storm is being described as an “impactful extratropical cyclone” — the type that has cold air at its core and derives its energy from cold and warm air masses interacting.

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.

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.

There are plenty of ways to enjoy the natural features of the Lehigh Valley this spring.

Attendees at the meeting in Lower Saucon Township heard from a new expert witness: the traffic engineer who completed the respective transportation impact analysis.

Rain, strong winds and a severe weather threat have caused organizers of Bethlehem's Cherry Blossom Festival to postpone the event to Sunday.

Lehigh Valley residents might see low-flying planes over Blue Mountain through April 7 as efforts continue to remediate the Palmerton zinc pile superfund site.

Signs of spring are popping open around the Lehigh Valley, which means allergy season is here. The mild winter may play a role in how early and severe those allergies are.