Environment & Science

A red flag warning is issued when the risk of fire danger is highest. The warning is in effect until 7 p.m. Friday.

The U.S. Drought Monitor on Thursday showed all of the Lehigh Valley in either “moderate” or “severe” drought.

At a hearing at Nitschmann Middle School in Bethlehem, concerned residents voiced worries about what could happen in the case of a train derailment of hazardous material.

This week on Watching the Skies, WLVR's Brad Klein and Bethlehem's Backyard Astronomy Guy Marty McGuire talk about the upcoming new moon, just in time for Halloween.

Lehigh and Northampton counties and surrounding areas ripe for easy-starting potential fire situations.

PennEnvironment's 2024 “Renewables on the Rise” report ranks every state for the production of wind energy, solar power, energy storage and other metrics over the last decade, tracking growth.

Plainfield Township supervisors voted to consider a zoning change that would pave the way for the Grand Central Landfill to expand. It's the first of many, many steps in the process.

Covering 187 acres in Salisbury and Upper Saucon townships, the sanctuary has seven different trails, and is the conservancy’s ninth nature preserve in the Lehigh Valley.

The plan, estimated to cost more than $300 million over the next decade, seeks to overhaul and upgrade aging water and wastewater infrastructure across more than a dozen Lehigh County municipalities.

The Bethlehem Area School District is getting $2 million in federal rebates to buy 10 more electric school buses. Officials expect the buses to be in service next school year.

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.

Wednesday marked the end of the first round of a three-year initiative called TOWERS, or Tackling Obstacles for Women’s Engagement and Retention in STEM, at Cedar Crest. Through the program, incoming freshmen are paired with mentors to complete science projects, gaining confidence and community along the way.

In the home stretch of summer, is the worst of the heat behind us? Here’s where things stand in the Lehigh Valley as we look ahead — and enter the peak of hurricane season.