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.

Conservationists tag around 35 Monarchs each year. They used to tag hundreds.

Tracking 10 miles makes you eligible for the ticket drawing for next year's headliner shows.

Hazardous trees are cut down due to old age and illness.

An expert says the tragedy illustrates the dangers of handling exotic animals.

Classroom space, laboratories and a visitor center will be part of the state-of-the-art facility.

Don't just go by what's on the packaging. Best to check online, too, a local expert says.

Ice, mist and fruit- or fish-infused 'ice cakes' are being used to cool down inhabitants.

A Lehigh Valley doctor says the antiviral regimen is readily available -- and effective.

It's not just people -- pets need someone to keep watch during extreme heat, too.

There were around 1,500 cases reported in the U.S. as of Monday.

It's OK to feed the birds again since the mysterious illness has disappeared.

Some say the app is still useful and could be adapted to other uses.