Environment & Science

Two Allegiant flights slated for Wednesday afternoon have been canceled. Forecasters say the Category 3 story is 'unprecedented.'

More than 2,600 acres on 35 farms in 18 counties across the commonwealth were preserved. Here are the Lehigh Valley farms now safe from development.

The yet-to-be-named calf was born Aug. 4 and is the tenth oryx calf born at the zoo since 2014.

As of Aug. 22, more than 300 raptors were counted during the Berks County sanctuary's annual autumn count. The count runs through Dec. 15.

Beginning Wednesday night, a super blue moon will rise and will be the third-largest moon to date this year, leaving one more supermoon in 2023.

The Pennsylvania Game Commission's Elk Cam gives viewers a close-up look at elk as their activity is about to ramp up with the bugling season. It features a rotating, zooming camera and natural sound.

Three studies show smoke from Canadian wildfires led to a spike in people with asthma visiting emergency rooms in the United States. One study collected data from about 4,000 U.S. hospitals.

The Weather Prediction Center said one inch per hour rainfall rates are possible, as well as “precipitation totals on the order of 1 to 2 plus inches through the period.”

The middle of August is prime time for ragweed pollen production, according to the state Department of Environmental Protection — and that’s exactly what the numbers are showing in the Lehigh Valley.

It is now certain, forecasters say, that the Lehigh Valley will not see a 90-degree day in the month of August. Not with a pool of Canadian air set to descend on the region.

Almost 100 volunteers on Saturday picked up litter at Monocacy Creek. Organizers said there was "lots of camaraderie” and enthusiasm.

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.

A new North Whitehall Township plan that considers building a skate park, amphitheater, disc golf, splash pads and more as outdoors activities increase got township supervisors' approval Monday.