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 exhibit, which calls itself North America’s most popular interactive dinosaur event, will return to Allentown Fairgrounds Agri-Plex from June 13-15.

Easton's new sustainability coordinator has launched an email for residents to direct their ideas and concerns about sustainability in the city.

The 3rd Annual No Planet B Jamboree will be at 1-4 p.m. Saturday, April 19. For the first time, it will be at the ArtsQuest Town Square Stage on the SteelStacks campus.

Allentown Mayor Matt Tuerk, along with local legislators and officials, on Thursday morning held a news conference focused on energy efficient programs frozen due to cuts enacted by President Donald Trump and the U.S. Department of Government Efficiency.

Brandon Sullivan recently was hired as Easton's first sustainability coordinator. It's the third of the Lehigh Valley's major cities to carve out a position dedicated to mitigating the effects of climate change.

It's Earth Month, and there are many opportunities to get involved. Here are the events scheduled in the Lehigh Valley.

Allentown's climate action plan survey is live. When completed, the city will be the third of the Lehigh Valley’s major cities to create a climate action plan.

It is the second time the township has been awarded trees through TreePennsylvania’s Bare Root Tree grant program. The statewide nonprofit supports urban and community forestry to increase tree coverage.

This week on Watching the Skies, learn how to spot several stars and bright celestial objects in the sky like Mars and Jupiter.

Almost 100 migrating birds of prey have been recorded since April 1, when this year’s count started. Officials at the sanctuary, as well as volunteers, have monitored the spring raptor migration since the 1960s.

Two Northampton County farms were the latest to be included in Pennsylvania’s Farmland Preservation Program. The program aims to ward off development and protect open spaces.

Flooding from Hurricane Ida put the Saucon Creek retaining wall and nearby park pavilions out of commission in 2021. This year marks the first since then that the shelters will be up for rent again.