Environment & Science

Inversion is a natural phenomenon that causes bottom water to flow up to the top surface and surface water to drop to the bottom. It's causing some households' drinking water to smell and taste different.

Participants in this year's D&L RaceFest, the largest yet, took to Lehigh Valley streets and trails Sunday. The day's top prizes both went to Easton residents.

The Lehigh Valley is parched, again. Here's what the region needs to get out of the drought that has led to burn bans and voluntary water conservation measures.

The Blue Mountain fire, also called the Gap Fire, erupted Saturday in Lehigh Township. It's now 100% contained, officials said.

The red flag warning is in effect from 8 a.m. to 6 p.m. Friday in both Lehigh and Northampton counties. It's the second red flag warning issued so far this month.

The fire erupted Saturday in Lehigh Township. Over the following days, the fire grew from 150 acres to almost 600 near the border of Northampton and Carbon counties.

Daniel Klem Jr., director of the Acopian Center for Ornithology at the college, on Saturday was presented with the Walt Pomeroy Conservation Award. His most recent study found 3.5 million birds dying every day in a 365-day period.

Easton Outdoor Company hosted the launch of the Elevate program, which aims to help outdoor activity-oriented businesses connect and thrive, on Monday, Oct. 29.

Firefighters battling a blaze on Blue Mountain expressed gratitude to the community for an abundance of donations — so many that they have advised people to hold onto their contributions as they have reached capacity for storage.

Celebrating a year of space facts and fun sightings to look for.

The U.S. Department of Agriculture updated its plant hardiness map, showing a warmer Lehigh Valley. The region has moved into a warmer zone from the one where it was placed more than a decade ago. Experts say it has consequences for plant seasons and species.

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.

If you're doing anything outdoors, do it Saturday. Rain will arrive Sunday and is forecast to intensify later in the day, with gusty winds. The National Weather Service issued a flood watch for Sunday afternoon into Monday afternoon.

LANTA officials are reminding residents for caution when and if severe winter weather returns this season, and discussed what riders should do if they are unsure with the status of service after a storm

A sprawling storm system is expected to bring heavy rain, strong winds and snow to the region this weekend.

Chances are, you'll still be able to find a tree, it just might take a little extra work — and you might want to get it soon. Roger from Unangst Tree Farms explains the ins and outs of why this problem, a decade in the making, is now causing tree farms and stands to sell-out when it's barely December.

Almost 11,000 birds of prey were counted this year during the Lehigh Gap Nature Center’s annual autumn hawk watch as they made their way along the raptor "superhighway" in the Valley’s backyard.

Snow is in the forecast for the Lehigh Valley, and meteorologists say it could impact the Thursday morning commute. A more potent system Sunday could be 'quite a wild ride.'

Emmaus is set to approve the $46 million dollar budget at council's second December meeting, marking a large investment into the borough's management of PFAS contamination.

Forecasters say the Lehigh Valley will see a mixed bag of precipitation in the days ahead, with snow showers possible Wednesday and Thursday and a potent storm system expected this weekend.

Lehigh Valley Breathes is a Valley-wide effort to monitor air quality amid emissions from trucking and warehousing. The project is expected to run for a year.

State lawmakers on Monday held a committee hearing titled “Minimizing Risk & Harm: Preparing for Pennsylvania’s Hydrogen Future.” It comes almost two months after President Joe Biden announced seven regional clean hydrogen hub projects, including two in Pennsylvania.