Environment & Science

Advocates and officials across Pennsylvania have signaled their support the new standards for fine particle pollution, also called soot or PM 2.5. However, federal officials don’t anticipate communities will meet the standard for almost a decade.

Norfolk Southern crews remained at the derailment site along the Lehigh River in Lower Saucon Township. The company released no details on what the trains were hauling or where they were going.

More than 200 years after the sanctuary was built, church leaders are working to make its heating and cooling more sustainable. While work is already underway, the oldest Moravian Church in North America still needs funding.

After a washout Saturday in the Lehigh Valley, forecasters say a parade of storms could easily produce another 2 to 3 inches of rain or more over the next week.

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

Lehigh Valley Breathes aims to monitor air quality amid emissions from trucking and warehousing. Here's the February update.

With spring still weeks away, state forest officials are gearing up for this year’s spongy moth hatch. Here's what Lehigh Valley residents need to know.

While many customers are waiting for their power to be restored after the wind storm in the Lehigh Valley, estimated repair times are putting some areas on a longer waitlist. Check out the logic behind those estimates and what they really mean.

An "all-day rain type of event" Saturday will serve as an advertisement for the Lehigh Valley's weather in the long-term. The front half of March in a word is "wet."

A half-dozen city leaders and environmental advocates highlighted the economic, environmental and public health benefits the implementation of clean truck standards could reap across the Valley.

Philadelphia set a record Saturday with its wettest March day on record, eclipsing 3 inches just before 2 p.m. The Lehigh Valley didn't get quite that much, but set a record of its own for the day, according to the National Weather Service.

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.

While not federally recognized, residents across the country for the last half-century have acknowledged Earth Day by demonstrating for more environmental protections, cleaning up their communities or learning more about the planet they call home through educational initiatives.

When excessive rain falls, the Lehigh Valley can see flooding of rivers, creeks, streams and other low-lying and flood-prone locations. These area roadways are usually impacted.

The Lehigh Valley is under a flood watch in effect from late Friday through Sunday morning, with excessive rainfall on the way and gusty winds following the storm that could result in power outages.

A coastal system is expected to bring heavy rain to the Lehigh Valley and much of the region this weekend, prompting concerns of flooding and power outages.

The Asthma and Allergy Foundation of America released its Allergy Capitals report this month. Allentown ranked in the Top 15 nationwide.

Late Tuesday marks the astronomical beginning of the spring season in the Northern Hemisphere, but forecasters say winter isn’t quite done with us yet.

A section of Institute Drive will be closed through most of April to protect breeding amphibians. Experts said the road-closing conservation effort is not only important for the animals, but also for the region’s overall landscape and ecosystem.

According to experts, the only way to view the total eclipse on April 8, 2024, is to be inside the 120 mile-wide path of totality. Outside of it, you won't have nearly the same experience.

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

Dieruff High School is in the process of modernizing and expanding its Learning Dome, a space for interactive, three-dimensional lessons.