Environment & Science

It's the third time the Delaware River has won the title. Previous wins were in 2002 and 2017.

Some salt sheds across the region could be down to their final grains, officials said Thursday, as reports of a rock salt shortage spread through the region and well beyond.

The state's dairy industry has officially reached "HPAI-free" status after rigorous testing in Pennsylvania dairy cattle for highly pathogenic avian influenza. Other states have detected bird flu in their cattle though, so the state will continue to monitor and test cattle.

Sarah DeGrendel was recently hired as the city’s first sustainability manager. The position focuses on creating and facilitating sustainability initiatives while capturing grant funding to cover the cost of related projects.

Months after a fire tore through Blue Mountain, the community continues to support the fire departments who helped battle the blaze. This time, that support comes in form of monetary donations.

This week on Watching the Skies, a look at efforts to preserve the artifacts that remain on the moon’s surface.

A pair of river otters at the Lehigh Valley Zoo offered their predictions for the winner of Super Bowl LIX during the zoo's annual Otter Bowl. Eagles fans may not like it, depending on their perspective.

The winter weather advisory will run 3 p.m. Saturday to 6 a.m. Sunday, with mixed precipitation expected in the Lehigh Valley and across the region.

St. Luke's University Health Network on Friday launched an email helpline for residents with questions about avian flu. No human cases have so far been recorded in Pennsylvania.

The Valley’s two major health networks are preparing for an increase in bird flu in people. Cases have been generally mild, with none reported so far in Pennsylvania.

Black fly spraying starts June 30 along the Lehigh and Delaware rivers.

Some lawmakers and environmental groups are calling on the Wolf administration to strengthen a proposed regulation that aims to curb emissions of the potent greenhouse gas methane before the rule comes up for a final vote. But the proposal exempts tens of thousands of low-producing wells.

Gov. Tom Wolf wants Pennsylvania to join a nationwide program that aims to curb pollution generated by power plants.

State parks saw an increase of more than 7 million visitors last year and the trend is expected to continue.

Around the world, April 21 is the 51st celebration of Earth Day. But here in Pennsylvania, we have a little something extra to celebrate.

Air quality in the Lehigh Valley is getting mixed reviews in the 22nd annual American Lung Association's State of the Air report released April 21.

Bethlehem has announced a new plan to fight climate change. To kick off the effort, the city is creating its first-ever office of sustainability and city residents are being asked to join to help reduce Bethlehem’s carbon footprint.

The spotted lanternfly continues to kill crops across Pennsylvania. The invasive pest was first discovered in Berks County in 2014, and the state recently expanded its mitigation efforts extending the list of quarantined counties.

The Wolf Administration says it is making the largest government commitment to solar energy in the country by agreeing to buy power from seven new solar projects in the state.

Microplastic contaminants have been found in 53 waterways in Pennsylvania, including in the Lehigh River, according to clean water advocacy group PennEnvironment.

As snowstorms hammer away at the Lehigh Valley, there is a lot of news about massive blackouts following snowstorms in Texas where people are taking drastic measures to stay warm including running cars to heat their homes.

As the Lehigh River draws people from all over the region for whitewater season, the churning of the water depends on a dam controlling the flow.