Environment & Science

The latest map issued by the U.S. Drought Monitor shows a majority of Pennsylvania — including most of the Lehigh Valley — in a moderate drought.

Air quality in the Lehigh Valley is expected to be a little bit better on Thursday, though we're back under a code red alert for the second straight day.

As smoke from the Canadian wildfires continues to shroud the skies of the Lehigh Valley, air purifiers have become a hot-ticket item at just about every retailer.

Lafayette on May 26 submitted plans to replant College Hill after it was deforested for a $1.2 million walkway project. Here's the plan.

The Lehigh Valley is under a code red air quality alert in effect until midnight due to Canadian wildfires. Here are the latest updates on the smoke.

The air quality in Allentown, Bethlehem and Easton is so bad, it’s the equivalent of smoking more than 14 cigarettes.

Smoke from wildfires in Canada can be seen and smelled in much of the northeast, including the Lehigh Valley. Local pulmonologists are weighing in with what to do to avoid too much exposure.

The Lehigh Valley is under a code red air quality alert in effect until midnight.

The National Weather Service says thick smoke associated with wildfires in Canada is moving into parts of Pennsylvania and New Jersey.

Allentown Fire Department is warning against any outdoor fires due to dry conditions and elevated winds as a red flag warning continues for the region.

The past two Lehigh Valley winters haven't produced much in the way of snow. With the potential for significant snowfall this weekend, local business operators are gearing up — at last.

Officials behind the longest running raptor migration count in the world have posted the results of the 2023 season. Here's how many birds of prey were spotted.

The proposal under consideration in Harrisburg would up Pennsylvania’s renewable energy goals from 8% now to 30% by 2030.

January is National Radon Action Month, and officials from the American Lung Association are offering a limited supply of free radon test kits for commonwealth residents, including those in the the Lehigh Valley.

The weekend storm threat would be the area’s first significant snowfall in years, but forecasters say we have a long way to go to determine the final impacts.

From 4:30 p.m. to 6:30 p.m. on Jan. 10, college officials are opening up the Fahy Commons for Public Engagement and Innovation, 2400 W. Chew St., for residents and community members to explore.

The James Webb Space Telescope, launched on Christmas 2021, orbits the Sun about a million miles outside Earth’s orbit. It is the most powerful, largest, and most complex telescope ever made.

This New Year’s Day, tens of thousands of people across the country, including dozens in the Valley, will take a guided hike through a state park to mark the beginning of 2024.

December 2023 is now the wettest December on record in the Lehigh Valley, with a total of 8.17 inches of rainfall recorded as of 11:59 p.m. Wednesday. The high water mark was set during a day of record rain for Dec. 27.

The ski slopes just southeast of Lehigh County announced it would shut down at 3:00 p.m. Tuesday, awaiting colder weather to make snow

With a forecast projecting 1 to 1.5 inches of rain possible this week, the Lehigh Valley will move closer to its wettest December ever.

Lawmakers in Harrisburg passed nearly three dozen laws last week in a final burst of action as they held their last voting session of the year.