Environment & Science

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.

Take a look at stories throughout the week of which we are most proud, had a profound impact on readers or that you might want to look at again.

The commonwealth is getting $265.9 million in federal funding to upgrade its aging water infrastructure. The state has the fourth most lead pipes in the nation, according to a recent EPA survey.

The spring migration count at Hawk Mountain has begun. So far this season, 137 birds of prey have been recorded.

Allentown’s Cedar Creek Park was covered Thursday in lesser celandine, a low-growing, mat-forming flower that’s been flagged by the Department of Conservation and Natural Resources.

The tool and seed library at Bethlehem Area Public Library's South Side branch, 400 Webster St., includes free seeds for all. Patrons can check out tools for a week with a library card.

“An isolated tornado is not entirely out of the question," the National Weather Service said of Saturday's threat. But non-English speakers may not be aware of warnings for severe weather.

The Dorothy Rider Pool Wildlife Sanctuary is closed to the public following a Tuesday bridge collapse. Wildlands Conservancy has launched a website where updates will be posted.

Excessive rainfall during drought can trigger flash flooding, forecasters say. The concern is that prolonged dry conditions can make the soil hydrophobic, meaning it repels water.

Terry Hart, of Lower Saucon Township, is a NASA astronaut who flew aboard the space shuttle Challenger in 1984. Today he's a professor in Lehigh University's Department of Mechanical Engineering, mentoring a new generation heading into the field of science and technology.

Led by the Greater Lehigh Valley Chamber of Commerce and the Sustainable Energy Fund, The Lehigh Valley Sustainability Summit drew economic and industry leaders from across the region to engage on topics like waste reduction, energy and economic growth.

The American Lung Association’s “State of the Air” report shows air quality got worse in the Lehigh Valley. The report was released Wednesday.

This week, an update on two astronauts who captured the world’s attention when their stay on the International Space Station went from a couple of days to the better part of a year.

The Growing Greener Plus grant program aims to address critical environmental concerns, like flooding, as well as protect waterways and watersheds. Applications are due June 20.

The first winner of the Good Farmer Award U.S. was announced on Earth Day. The competition sought beginner farmers who exemplify sustainable farming practices.

A Lehigh County resident's collection of more than 150 conifers, assembled over decades, will soon be moved to the Louise Moore Park arboretum in Lower Nazareth Township.

The Lyrid meteor shower is at its peak this week. Looking to catch a shooting star? Brad Klein and Marty McGuire talk about prime viewing times on this week's Watching the Skies.