Environment & Science

The swarms are common around bodies of water, making Bethlehem neighborhoods near the Lehigh River more susceptible. While a nuisance, they pose no threat to residents.

These high pressure systems located near Bermuda have a clockwise circulation, which means the eastern U.S. receives south to southeast winds, bringing in the heat and humid air.

State transportation officials on Wednesday held an online public forum to answer questions from residents about their 12-Year Program, a planning and funding tool for state-owned road and bridge projects.

The Lehigh Valley is under a red flag warning Wednesday, and officials say critical fire weather conditions are expected.

Excessive road salting during the winter months can negatively impact the environment and local infrastructure. A nonprofit is working to collect salinity data from waterways.

PennEnvironment launched an interactive map of efficient and renewable energy projects across the state. Here are the Lehigh Valley projects included.

Almost 100 volunteers on Saturday picked up litter at Monocacy Creek. Organizers said there was "lots of camaraderie” and enthusiasm.

The Allentown Environmental Advisory Council is examining three of the city's largest buildings to identify potential opportunities to boost efficiency and cut costs.

Lehigh Valley residents eager to begin their spring gardening are looking toward the last frost and freeze dates for the area — but they'll have to be patient.

Ruth Santiago, an attorney and environmental activist in Puerto Rico, is returning to the Lehigh Valley this month to speak to students and residents about alternative electrical systems and environmental equity amid climate change.

Some remained without power Sunday morning after a powerful line of storms rumbled through overnight. A mostly quiet weather day was forecast.

Musikfest attracts tens of thousands of people to the city each day during its 10-day run. Officials said they’re continuously working to lessen the event’s impact on the environment.

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.

Following morning sunshine, thunderstorms are in the forecast. But will the Lehigh Valley see severe weather on Saturday?

Record-warm ocean temperatures are likely to fuel the peak of hurricane season, scientists at the National Oceanic and Atmospheric Administration said Thursday.

For those who lost power in their homes due to the tornado that raced through Allentown on Monday, the first thought would be to call PPL. Think again.

It’s the peak of the annual Perseid meteor shower and WLVR’s Brad Klein speaks with a local amateur astronomer about how best to see meteors in the night sky.

An Allentown homeowner caught on video the moment an EF-1 tornado touched down in the city’s Midway Manor neighborhood on Monday night.

As cleanup continues from Monday’s severe weather, the Lehigh Valley will see a period of rain Thursday that could bring localized flooding to some areas.

The National Weather Service determined damages during a severe thunderstorm Monday night were from straight-line winds as high as 100 mph, but no tornadoes touched down there.

The National Weather Service rated the tornado as an EF-1 — the second-weakest on the scale. It hit the Midway Manor neighborhood of Allentown and crossed into Bethlehem briefly, according to a weather service statement.

A National Weather Service survey team confirmed a tornado touched down in Allentown’s Midway Manor neighborhood Monday night on the east side, but the twister was unwarned.