Environment & Science

Inversion is a natural phenomenon that causes bottom water to flow up to the top surface and surface water to drop to the bottom. It's causing some households' drinking water to smell and taste different.

Participants in this year's D&L RaceFest, the largest yet, took to Lehigh Valley streets and trails Sunday. The day's top prizes both went to Easton residents.

The Lehigh Valley is parched, again. Here's what the region needs to get out of the drought that has led to burn bans and voluntary water conservation measures.

The Blue Mountain fire, also called the Gap Fire, erupted Saturday in Lehigh Township. It's now 100% contained, officials said.

The red flag warning is in effect from 8 a.m. to 6 p.m. Friday in both Lehigh and Northampton counties. It's the second red flag warning issued so far this month.

The fire erupted Saturday in Lehigh Township. Over the following days, the fire grew from 150 acres to almost 600 near the border of Northampton and Carbon counties.

Daniel Klem Jr., director of the Acopian Center for Ornithology at the college, on Saturday was presented with the Walt Pomeroy Conservation Award. His most recent study found 3.5 million birds dying every day in a 365-day period.

Easton Outdoor Company hosted the launch of the Elevate program, which aims to help outdoor activity-oriented businesses connect and thrive, on Monday, Oct. 29.

Firefighters battling a blaze on Blue Mountain expressed gratitude to the community for an abundance of donations — so many that they have advised people to hold onto their contributions as they have reached capacity for storage.

Celebrating a year of space facts and fun sightings to look for.

Your name can travel to space on the Europa Clipper Spacecraft. NASA’s ‘Message in a Bottle’ program is open through the end of December.

The state Department of Environmental Protection's Energy Programs Office will host five public engagement sessions in December, four in-person and one virtual, as officials work to create a priority climate action plan to address the negative effects of climate change.

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.

Residents from the Lehigh Valley and beyond on Thursday attended the state Department of Environmental Protection’s last public comment meeting on the commonwealth’s interim environmental justice policy. The majority said the policy doesn’t go far enough.

Blue Mountain Resort took full advantage of a recent cold snap across the region to fire up the snow guns — and schedule Opening Day on Friday.

While plans for the site include homes, offices, restaurants and other facilities at the 200-acre East Side property, regulations call for at least 35%, or about 70 acres, to be preserved as open space for outdoor recreation.

Wildlands Conservancy’s first fall photography contest is underway, with entries due just before midnight Thursday. Officials said the contest aims to encourage residents to explore the outdoors, as well as share their interest in nature with others in the community.

The Lehigh County Authority used municipal meetings to highlight what upgrades were currently planned to Lehigh County's sewer system, and what might be needed form the local governments

The coldest air of the season thus far is arriving in the Lehigh Valley, with forecasters touting conditions favorable for snow showers and squalls this afternoon.

Starting this month, and running on select Thursdays through March, this year’s series includes officials from state and local agencies, as well as nonprofits. It's free for members and costs $5 for non-members.

Brad Klein reviews the week’s astronomical highlights with Bethlehem’s 'Backyard Astronomy Guy," Marty McGuire.

Less than a decade old and with trainees coming from all over the country, Rodale Institute’s Veteran Farmer Training program aims to give veterans the tools they need to pivot into successful farming careers, as well as spread knowledge about sustainable farming practices and regenerative organic agriculture.