Environment & Science

Allentown and Easton have been paired with an engineering company to reduce energy costs and greenhouse gas emissions. It's Allentown's first time, but Easton's second, in the program.

Environmentalists say the Lehigh River is the cleanest its been in 175 years. A river snorkeling program at Lehigh Gap Nature Centers encourages residents to explore their local waterways and track river health.

This week Watching the Skies explores the ice giant, Uranus.

Another heat advisory has made its way to the Lehigh Valley, accompanied by an air quality alert. While temperatures aren't expected to be as high as the last heat wave, the heat index could still hit triple-digits Monday and Tuesday.

Cars were running and appeared ready to roll Saturday morning at the site of Friday's multi-car derailment.

More than two dozen dinosaurs are on display at the Allentown Fairgrounds Agri-Plex through Sunday night.

Possible showers and thunderstorms will provide little relief from the humidity over the next several days, according to the National Weather Service.

The Climate Prediction Center is favoring warmer than normal temperatures for the Lehigh Valley, which has an average daily high of 86.4 degrees in July, according to data from the National Weather Service.

A Mars-themed event at Bethlehem Area Public Library will focus on NASA rovers Curiosity and Perseverance. Registration is encouraged.

The National Weather Service's storm prediction center shows the Lehigh Valley falling in line with forecasts of high winds, potential hail and some severe thunderstorms Sunday evening.

“Twitter is now limiting automated tweets and as a result this account can no longer post all watches/warnings/advisories as they are issued,” a tweet from NWS Mount Holly said Saturday morning. Things seemingly changed Saturday night.

Like the rest of the country, Pennsylvania has a litter problem. While state and local officials work to mitigate the issue, residents are rolling up their sleeves and doing the work themselves.

The warning is expected to last until 5:30 p.m. Saturday.

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.

Titan, a 12-year-old raccoon, was euthanized at the Lehigh Valley Zoo several months after he was diagnosed with a bladder tumor. A favorite to patrons, he will be sorely missed, officials said.

The Bethlehem Planning Commission approved changes in the zoning ordinance that would permit day care facilities at community centers and environmental education centers. City council will also have to approve the changes.

The swarms are common around bodies of water, making Bethlehem neighborhoods near the Lehigh River more susceptible. While a nuisance, they pose no threat to residents.

These high pressure systems located near Bermuda have a clockwise circulation, which means the eastern U.S. receives south to southeast winds, bringing in the heat and humid air.

State transportation officials on Wednesday held an online public forum to answer questions from residents about their 12-Year Program, a planning and funding tool for state-owned road and bridge projects.

The Lehigh Valley is under a red flag warning Wednesday, and officials say critical fire weather conditions are expected.

Excessive road salting during the winter months can negatively impact the environment and local infrastructure. A nonprofit is working to collect salinity data from waterways.

PennEnvironment launched an interactive map of efficient and renewable energy projects across the state. Here are the Lehigh Valley projects included.