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.

Allentown received a $100,000 grant from Bloomberg Philanthropies to continue funding youth-led climate action projects this year.

While initial testing came back negative, a necropsy found the mature mother eagle died of bird flu. Pocono wildlife officials say it's the fourth bird that came back negative for avian flu during field testing, but was later confirmed to have the viral infection.

The LVPC Environment Committee on Tuesday approved a proposal by Lower Nazareth Township to modify its Agricultural Security Area program. The ASA program lets farmland owners enroll their properties in an ASA, which then is managed by a municipality.

There's been another attempt to repeal the Environmental Protection Agency's Lead and Copper Rule Improvements.

This week, Brad Klein and Marty McGuire take a look at the lunar phenomenon known as ‘earthshine.’

Emmaus Borough Council awarded the contracts earlier this week. The project focuses on two of the borough’s wells, including one that’s been offline since PFAS contamination was discovered.

Thousands of the Lehigh Valley's wild and domestic birds have been infected with avian flu. However, risk to songbirds remains low.

There have been dozens of claims brought against B. Braun alleging the ethylene oxide emissions from company facilities contributed to cancer cases in nearby residents and employees.

Bethlehem Twp. Commissioners voted in favor of an ordinance that would legally allow for existing structures on a 43-acre property near Green Pond Road, which houses NCC's East 40, though those properties may need special permits.

High wind warnings were converted to wind advisories for most areas early Monday, but not before thousands of utility customers across the region lost power overnight.

Applications are open for the The Good Farmer Award U.S. Officials are looking for farmers with less than 10 years of experience who exemplify sustainable farming practices while contributing to community and environmental health.

This week, a look at a NASA mission that is on the way to a moon landing, but very different from the Apollo missions a half century ago.