Environment & Science

The Allentown Environmental Advisory Council is examining three of the city's largest buildings to identify potential opportunities to boost efficiency and cut costs.

Lehigh Valley residents eager to begin their spring gardening are looking toward the last frost and freeze dates for the area — but they'll have to be patient.

Ruth Santiago, an attorney and environmental activist in Puerto Rico, is returning to the Lehigh Valley this month to speak to students and residents about alternative electrical systems and environmental equity amid climate change.

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.

The commonwealth is getting $265.9 million in federal funding to upgrade its aging water infrastructure. The state has the fourth most lead pipes in the nation, according to a recent EPA survey.

The spring migration count at Hawk Mountain has begun. So far this season, 137 birds of prey have been recorded.

Allentown’s Cedar Creek Park was covered Thursday in lesser celandine, a low-growing, mat-forming flower that’s been flagged by the Department of Conservation and Natural Resources.

It’s not unprecedented, but it is a little bit too early for the kind of warmth the Lehigh Valley will see next week, said meteorologist Bobby Martrich.

The U.S. Environmental Protection Agency on Tuesday released the results of the agency's "7th Drinking Water Infrastructure Needs Survey and Assessment." Pennsylvania ranked only behind Florida, Illinois and Ohio for the most lead service lines.

Firefighters battled a massive fire at a warehouse in West Easton early Tuesday, with multiple explosions heard from the property. The fire was declared under control after more than five hours.

Some insects like mosquitos are thriving later in the season as temperatures reach well into the 70s.

More than 81,000 documented oil and gas wells across the U.S. have been left unplugged by former owners — far exceeding the previous estimate of 56,000, according to a new report by the Environmental Defense Fund.

Pennsylvania has a new, tech-savvy option for hunters and anglers: digital licenses. The Pennsylvania Game Commission and the Pennsylvania Fish & Boat Commission’s new web platform allows people to apply for and download licenses in PDF form.

Get Outside for Good is a monthly hike aimed at raising awareness — and money — about and for Lehigh Valley nonprofit organizations. The hike, held the first Sunday of each month at the South Mountain Preserve in Allentown, is bringing local women together.

A new report says Lehigh Valley residents breathed in heavily polluted air for more than 50 days last year.

Texas-based pipeline builder Energy Transfer faces 48 criminal charges related to construction of its Mariner East pipeline project, including a felony count of failing to report pollution.

Electric vehicles are having a moment at the state capitol.

This week, PennEast Pipeline said it would stop developing a proposed pipeline from Pennsylvania to New Jersey.

Allegheny County has a new rule on the books aimed at lowering air pollution levels during weather events that trap industrial fumes near the ground.

When the glaciers retreated 13,000 years ago from northwestern Pennsylvania, eight natural lakes were left in their wake. The ones that have become popular, like Conneaut and Edinboro lakes, have vacation homes, resorts, and farms nearby. But one lake stands out as a jewel of the region: Lake Pleasant.

A new study from Penn State shows Pennsylvania could avoid billions of dollars in health damages by joining a regional cap and trade program targeting power plant emissions.

Pennsylvania is a top destination for people who travel to take pictures of fall foliage who are also known as “leaf peepers.”