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.

Easton City Council approved two resolutions to apply for a DCED Flood Mitigation Grant and a Grow NORCO Grant to help alleviate sediment issues in the Lehigh River and improve the Centennial Park.

Zoo staff, volunteers and donors gathered at the zoo, 5150 Game Preserve Road in Schnecksville, for a ribbon cutting to mark the opening of Habitat Madagascar, a year-round lemur and tortoise exhibit.

The group's goal is to prevent veteran suicides.

As a high pressure system moves in over the Lehigh Valley, we can expect dry, mostly sunny conditions, at least for parts of the region until Sunday.

After clearing more than 40 trees without city approval, college officials must resubmit plans to comply with the city's steep slope conservation ordinance. Failure to do so will halt the project.

The spring migration count at Hawk Mountain has ended with counts 25% above the 10-year average.

There are more than 400 species of bees in Pennsylvania, but loss of habitat, disease and pesticides have put them at risk, experts said.

The county's Livable Landscapes program's priorities include land conservation, ecological restoration, education and outreach, municipal park development and rehabilitation and regional trails.

Baby goats, chickens, and even lizards were met with hugs from the seniors, celebrating nursing home week.

The Pennsylvania Public Utility Commission (PUC) is alerting consumers to widespread electric price changes.

In Pennsylvania, there’s currently no single resource for people to see how counties and local governments plan to spend the money. But understanding the process can help you influence it.

The Appalachian Mountain Club on Tuesday released their "Equity and Accessibility Assessment Along the Highlands Trail in Pennsylvania" a report focused on a 2.3 mile section of the D&L Trail.