Environment & Science

Two Lehigh Valley municipalities this year participated in Penn State’s Local Climate Action Program. Here's how the program works to create a greenhouse gas inventory and, from those findings, a climate action plan.

The National Weather Service said early next week will look to bring some of the warmest temperatures we have seen thus far in the Lehigh Valley.

More than $5.5 million is set to go toward non-point source projects in Bethlehem Township and over $2 million will cover wastewater improvements in Bangor Borough.

Pennsylvania's third most populous region received a "C" grade from the American Lung Association and ranked fourth-worst in the mid-Atlantic for ozone pollution. But, it's better than last year’s rankings in the annual "State of the Air" report.

The Lehigh Valley Comprehensive Planning Committee on Tuesday agreed to add new definitions for ordinances in Plainfield Township addressing the keeping and raising of chickens at residential properties.

Fahy Commons was named the first project in the world to achieve a rigorous sustainability certification for buildings that reward projects for more energy than they use. The 20,000-square-foot, three-floor building cost $13.2 million and opened to students last January.

This year, Earth Day falls on April 22. But for Lehigh Valley businesses that embrace more sustainable efforts, no matter the cost, it's just another typical Monday.

“Public Participation, Public Power: A Community Guide to Local Land Use Decision-Making in Pennsylvania" was released Monday. The almost-100-page guide includes explanations of state and local land use laws and more.

WLVR’s Brad Klein reviews the week’s astronomical highlights with Bethlehem’s ‘Backyard Astronomy Guy,’ Marty McGuire. This week, Brad and Marty discuss Tuesday’s full moon. It’s known as the ‘Pink Moon’.

A new outdoor air quality monitoring project is coming to Allentown this summer. The data collected through the initiative, officials said, will help inform decision-making to improve residents’ health in the city, known for its poor air quality.

The Lehigh Valley has been reshaped by a massive wave of development, both in industrial and residential, that has swept over the region the last three decades. While the development boom may be slowing, the impacts to the region’s economy and the environment are clear. (First of 5 parts)

After temperatures that felt more like October than August last week, forecasters say the Lehigh Valley will return to summer in a big way this week. Near-record heat is expected Wednesday.

The planets Jupiter and Mars will share a small patch of the eastern sky with the crescent moon, and the star Aldebaran on August 27. Here's how to see it.

A renewable natural gas plant adjacent to the Bethlehem Landfill opened on Tuesday morning.

“We have cooler air coming in," Lehigh Valley meteorologist Bobby Martrich said in his latest update. "Cooler air and refreshing air coming in for the next several days.” How far will temperatures fall?

More than 5 inches of rain was reported to have fallen in parts of the Lehigh Valley on Sunday, according to official data from the National Weather Service.

The free exhibit, “America’s Beautiful,” at Lehigh Gap Nature Center runs from Aug. 21 to Aug. 29. It includes 50 watercolor paintings of Smokey Bear.

More than eight months after announcing a $600 million price tag over the next decade to upgrade aging water and wastewater treatment infrastructure, the Lehigh County Authority is reaching out to major industrial users.

A full moon is on display the evening of Monday, August 19. The full moon of each month has one or more traditional names, and the August full moon is known as ‘the Sturgeon Moon.’

Swaths of the Lehigh Valley were inundated by heavy rainfall on Sunday, leading to flash floods and prompting water rescues. Some areas received nearly 5 inches of rain, with a secondary front set to bring more on Monday.

A flash flood warning is in effect for parts of Lehigh and Northampton counties until 11:30 p.m. It follows a line of severe thunderstorms and a flood watch that will be in effect until 2 a.m. Monday.

The arrival of a slow-moving system will make for an unsettled weekend, forecasters say, with an excessive rainfall risk and potential flash flooding Sunday for the Lehigh Valley.