Environment & Science

In its 10th year, and led by the Watershed Coalition of the Lehigh Valley, the conference theme was “Back to Basics,” and drew a sold-out crowd with about 180 people, including professionals and volunteers.

The Allentown Environmental Advisory Council on Monday unanimously approved a letter and draft resolution, urging city officials to use non-chemical methods to dispatch invasive plants.

The Walking Purchase, a 1737 land grab perpetrated by William Penn's sons, shaped the Lehigh Valley as residents know it today. But, the land wasn’t actually purchased, as the name might suggest — it was swindled from the Lenni-Lenape.

On Watching the Skies, WLVR's Brad Klein and Bethlehem's "Backyard Astronomy Guy" Marty McGuire talk about possible signs of life on Mars, as seen by NASA's Perseverance rover.

More than 130 people attended the panel, which focused on efforts across the state to tamp down on light pollution, not only to benefit star-gazers, but for fireflies and migrating birds, too.

Twenty-seven city restaurants and eateries have so far responded to a single-use plastics survey.

Martin Guitar welcomed guests from across the music industry to talk about protecting the environment at its first Sustainability Summit on Thursday.

Veronika Vostinak, Allentown's sustainability coordinator, on Wednesday gave a hourlong presentation to the Lehigh Valley Environmental Advisory Council Network on her experience with plastic reduction efforts, targeting single-use foodwares and reusables for dine-in.

While a full report is expected next year, researchers behind Lehigh Valley Breathes have released a data analysis, which includes three comparisons looking at fine particulate pollution across eight monitoring locations.

The Environmental Advisory Council on Tuesday unanimously voted to send City Council a letter stating the EAC’s intent to work on a dark skies ordinance and urging city officials to consider collaborating, then adopting it when the time comes.

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

State police say someone has photos and they are investigating the sighting of a large feline — possibly a mountain lion — in a field in Lower Macungie Township on Sunday.

More than 1,336 acres across the commonwealth were preserved. Here are the Lehigh Valley farms now safe from development.

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.

Rainy weekends have put a damper on attendance at fall festivals in the Lehigh Valley.

A potent system is still on the way to the area, the National Weather Service warned Friday, referencing a storm forecasters have been talking about for almost a week.

The initiative consists of a partnership between Northside Alive and PPL — the latter donating 500 special lightbulbs to the community.

PennEnvironment released data showing Pennsylvania ranks near the bottom when it comes to the growth of wind energy, solar power, energy storage and other renewable energy metrics over the last decade.

A powerful storm system expected to bring heavy rain to the region this weekend might not be a total washout, forecasters say.

After Lafayette College cleared more than 40 trees for a $1.2 million walkway without city approval, no trees will be replanted on the hillside where they were removed, the city forester said. Instead, several dozen trees were planted across campus and in Easton.

An agreement between Bethlehem Landfill and the people suing them, reached Tuesday, limits the landfill’s work to expand while a series of lawsuits aimed at stopping the expansion go forward.

"This is something in winter a few months from now … this is a Miller B system [or nor’easter]. The difference is, temperatures are too warm for snow," EPAWA meteorologist Bobby Martrich said.