To protect yourself and your family, avoid going outside if possible and close windows and doors.

Here's what you need to know about the wildfire smoke and air quality situation in Philadelphia, Pennsylvania, New Jersey, and Delaware.

It’s Pennsylvania’s second pilot to provide new A/C units and repairs to people who already received LIHEAP or weatherization assistance in the past year.

They are increasingly targeting corporations, asset managers, and retirement funds with both moral suasion and financial muscle.

Vulnerable populations in Delaware, including children, older people, and those with asthma, heart disease, and lung disease, are advised to avoid outdoor activities.

Even when the Philadelphia area is not hit directly by a hurricane, it can still be devastated by a storm’s remnants.

Environmental scientists are evaluating the potential costs of climate change in Philadelphia — and how to prepare.

A new report looking at weather data over the last five decades has found an increase in fire weather days in the Garden State, and it could be devastating.

Outdoor water features known as spraygrounds are considered one way to help residents of all ages stay cool during increasingly hot summers.

Outcry over whale deaths has intensified, and everyone is looking for an explanation.

The measure piggybacks off one already in effect in the state’s most populous county. Even skeptics say it saves consumers thousands of dollars in upfront costs.

The proposal comes as the dangerous impacts of human-caused climate change become increasingly clear.

The PA Tick Research Lab, one of only three labs nationwide engaged in tick testing and research, is analyzing data from 30,000 tick exposures in Pennsylvania from 2019-2021.

Experts say climate change is fueling and favoring the growth of invasive species—in many cases, at the expense of Pennsylvania’s cherished symbols. 

In a new report, environmental advocates crunched EPA data to call out Pennsylvania’s “dirty dozen.”