Environment & Science

3M Co. has committed up to $10.3 billion, payable over 13 years, for remediation of per- and poly-fluoroalkyl substances, or PFAS.

Officials from the state Department of Environmental Protection issued a Code Red Air Quality Action Day for all of Pennsylvania, including the Lehigh Valley.

A tornado warning was issued in the Martins Creek area of Northampton County on Monday afternoon as severe storms moved through. On Tuesday, the National Weather Service confirmed a twister had reached the ground.

Officials gathered at The Waterfront to highlight the Environmental Protection Agency’s $5 billion climate pollution reduction grants program.

The region had been in drought and running a deficit in the rain column, but things changed in a big way on Monday for some parts of the Lehigh Valley. Now, more heavy rainfall is on the way.

The council voted 3-2, approving the preparation of a new landfill ordinance, all while the original proposal is under court review.

Storms today could bring damaging winds, large hail, flash flooding or even a tornado or two across the region. The Lehigh Valley is now under an enhanced risk for severe weather.

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.

Lehigh Valley Zoo officials this week publicly announced the birth of a bison calf, adding to the population boom of new animals at the zoo this year.

South Whitehall Township hosted a wrap-up meeting for "South Whitehall Landscapes," a plan guiding preservation efforts in the township.

Members of the Lehigh Valley Planning Commission's Comprehensive Planning Committee voted Tuesday to advance a letter opposing the planned expansion of Bethlehem Landfill.

Kids from five schools got live demonstrations of cow milking, beekeeping, apple farming and more. Organizers say it's meant to spark interest and explain an industry that they say sometimes goes unappreciated.

A November-like chill – one that prompted frost warnings for Tuesday morning – will give way to near-record-high temperatures by week’s end, forecasters say.

The coldest night of the season so far is approaching, according to the weather forecast.

A local consortium led by the Lehigh Valley Economic Development Corp. hoped to secure a $75 million grant to boost local production of semiconductors.

Brad Klein reviews this week's astronomical highlights with Bethlehem’s "Backyard Astronomy Guy."

Students learn to identify medicinal, edible and toxic plants. They also study how some plants have impacted history for both the good and bad, through their healing, addictive, profitable or edible properties.

The Allentown Public Library hosted a discussion on native plants and pollinators on Saturday, explaining their importance and what humans can do to help these vital organisms.

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.

The Northampton County Department of Parks and Recreation on Friday held a free program for residents about the world’s only flying mammal, bats, at Louise Moore Park, 146 Country Club Road in Lower Nazareth Township.

The officials announced a statewide drought watch this July. Here are the latest updates for Lehigh, Northampton and more.