Environment

Idalia has sustained winds of 125 mph — which is a powerful Category 3 "major hurricane." The storm, which had been a Category 4 early this morning.

Amid sweltering heat waves, classes have resumed in many districts around the country that have outdated heating and cooling systems — or no air conditioning at all.

Everything from chemical spills to bridge collapses have triggered recent emergency notifications. Here’s how to navigate the systems behind them.

Money from the American Rescue Plan will go towards trails, family areas, and restrooms.

Citizen scientists and Drexel researchers are testing whether planter benches make summer heat in five Philly neighborhoods more bearable.

Three studies show smoke from Canadian wildfires led to a spike in people with asthma visiting emergency rooms in the United States.

Researcher Dacher Keltner investigates the elusive emotion of awe, revealing how it transforms our brains and bodies, and how to find more wonder in our everyday lives.

They have foot pedals! And better sensors, reportedly. But some remain unconvinced they’ll help reduce litter.

Climate projections expect Delco to face significant challenges. Delco’s plan contains more than 200 actions to create a more sustainable and resilient county.

NOAA predicts the Mid-Atlantic could see nine to 14 days of high tide flooding this year — roughly three times as many days as the region saw in 2000.

The remnants of Hurricane Ida caused the most intense flooding along the Brandywine Creek in 200 years.

The Philadelphia Liquefied Natural Gas Export Task Force met a wall of unified resistance in Chester for its plans to build an LNG terminal along the Delaware River.

New Jersey set aside $4.5 million in grants in 2023 to support and train educators and ensure students in underserved districts also have access to climate change education.

It's no longer a hurricane but still carries so much rain that forecasters say “catastrophic and life-threatening.”

Philadelphia got over $163 million in federal recovery money tied to Ida. The city plans to spend nearly a third of it to improve housing.