Environment & Science

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.

Any fires that develop may quickly get out of control and become difficult to contain, the National Weather Service said in a red flag warning in effect for the area until 8 p.m.

Head Over Hooves Farm will run on a donation model through the month of February to encourage more visitors. The owners of the farm say the animals thrive on the socialization and enrichment the visits bring.

Learn more about Orion in this, the second of five segments about the constellation.

During the height of the COVID-19 pandemic, state parks across Pennsylvania were inundated with visitors.

State officials late last month announced the theme for this year’s annual tick-themed art contest, “Protect. Check. Remove.” Last year, there were no winners in the Lehigh Valley.

Take a look at stories that ran throughout the week of which we are most proud, had a profound impact on readers or that you might want to look at again.

Punxsutawney Phil predicted early spring, but the experts say those declaring winter over are in for a rude awakening, with the risk for colder weather in the second half of February increasing.

More than $2 million was allocated to nine organizations across Pennsylvania to fund various research efforts, all linked to the state’s $132.5 billion agriculture industry.

Gus the bison is considered to be "Hellertown’s mascot," but to owner Nanette Keck, he’s also a cherished pet.

January brought above-average snowfall to the Lehigh Valley, but long-range outlooks have flipped the script in a big way. Will February bring the big storms snow lovers are longing for?

Twenty-seven air quality monitors have so far been placed for Lehigh Valley Breathes, a Valley-wide, year-long effort to monitor air quality amid emissions from trucking and warehousing.

The four Galilean moons — Io, Europa, Ganymede, and Callisto — that Galileo saw and named were discovered as he was looking through the very first telescope.

Take a look at stories that ran throughout the week of which we are most proud, had a profound impact on readers or that you might want to look at again.