Environment & Science

People who stayed up late Sunday night were treated to an incredible display of the northern lights, which were visible in the Lehigh Valley.

The National Weather Service issued a severe thunderstorm watch for Lehigh, Northampton, Carbon, Monroe and several other eastern Pennsylvania counties.

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.

Mayors in Allentown, Bethlehem and Easton are coming together to fight against worsening climate change and strengthen sustainability across the region. Two of the three cities have their own climate action plans.

There are plenty of ways to celebrate Earth Day on Saturday, April 22, in the Lehigh Valley.

The first new building on Muhlenberg’s campus in more than a decade, the Fahy Commons for Public Engagement and Innovation, 2400 W. Chew St., opened in January. The 20,000-square-foot, three-floor building cost $13.2 million and is one of the first buildings in the world expected to achieve a rigorous sustainability certification for buildings that give more than they take.

A few strong to severe thunderstorms are possible in the region on Saturday, with the main threat being damaging wind gusts, according to the National Weather Service.

Puerto Rico's electrical grid has been devastated by hurricanes due to worsening climate change. Ruth Santiago, a Bethlehem native, has a solution.

Swarms of non-biting midge flies last week were spotted in Bethlehem. LehighValleyNews.com spoke with Marten Edwards, chair of Muhlenberg College's biology department, to find out more about the insects.

The National Weather Service warned early Monday of the next round of severe weather taking aim at the Lehigh Valley, and this time it will be a mostly nocturnal event.

$798,869 is set for a Turkey Hill Mini Market in Allentown off of I-78, Exit 57 and $727,420 is designated for a charging station at the Wawa off I-78 Exit 49 A-B

Jason Apreku, 21, was hiking with friends Friday when he collapsed on Mount Madison, the New Hampshire Fish and Game Department said in a statement.

Some remained without power Sunday morning after a powerful line of storms rumbled through overnight. A mostly quiet weather day was forecast.

Musikfest attracts tens of thousands of people to the city each day during its 10-day run. Officials said they’re continuously working to lessen the event’s impact on the environment.

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

Following morning sunshine, thunderstorms are in the forecast. But will the Lehigh Valley see severe weather on Saturday?

Record-warm ocean temperatures are likely to fuel the peak of hurricane season, scientists at the National Oceanic and Atmospheric Administration said Thursday.

For those who lost power in their homes due to the tornado that raced through Allentown on Monday, the first thought would be to call PPL. Think again.

It’s the peak of the annual Perseid meteor shower and WLVR’s Brad Klein speaks with a local amateur astronomer about how best to see meteors in the night sky.

An Allentown homeowner caught on video the moment an EF-1 tornado touched down in the city’s Midway Manor neighborhood on Monday night.

As cleanup continues from Monday’s severe weather, the Lehigh Valley will see a period of rain Thursday that could bring localized flooding to some areas.