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Hosted by Jad Abumrad and Robert Krulwich, Radiolab is a show about curiosity. Where sound illuminates ideas, and the boundaries blur between science, philosophy, and human experience.

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TED Radio Hour

A journey through fascinating ideas, astonishing inventions, and new ways to think and create. Based on riveting TEDTalks from the world's most remarkable minds.

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Environment

People now use the Delaware for recreation, like these visitors to Spruce Street Harbor Park. Prior to the Clean Water Act, the Delaware River was so polluted no one would have considered basking so close to it. But the regulation has not been updated for decades, and scientists say hidden dangers to fish and wildlife still exist. (Brandon Eastwood for WHYY)
Science

The Delaware River’s invisible threats

Hidden beneath what looks, and smells, like much cleaner water are potential new dangers like plastics, pharmaceuticals and the impacts of climate change.

7 years ago

Listen 7:25
A view of the Ben Franklin Bridge and Delaware River (Ashley Hahn/PlanPhilly, file)
Politics & Policy

Timeline: The Delaware River and the Clean Water Act

Reviving the Delaware River took decades and came about through a combination of social need, public outcry, and political will. Here, we look at the river's history.

7 years ago

President Trump has made environmental deregulation a priority. (Alex Brandon/AP)
Politics & Policy

Changes in water regulations under the Trump Administration

Since taking office, President Donald Trump has made environmental deregulation a priority.

7 years ago

(Chuck Snyder for WHYY)
Down the Shore
Community

How much snow fell at the Shore? Official totals not reported due to government shutdown

How much snow fell at the Jersey Shore on Sunday?

Not much, but you wouldn't know that from the local National Weather Service office in Mount Holly. 

7 years ago

Community
StateImpact Pennsylvania

Judges say DEP unlawfully issued air-quality permits to Sunoco at Marcus Hook

The DEP said Sunoco can continue to operate at Marcus Hook while the DEP review takes place.

7 years ago

Stories from the Streams

Back to our Roots

Planting trees along a stream can filter out pollutants and dramatically improve water quality. ...

Air Date: January 11, 2019

Stories from the Streams

Saving Soil, Saving Streams

Farmers and scientists work together to maintain the health of soil and streams. ...

Air Date: January 11, 2019

Stories from the Streams

Stream Fever

Streams that are too warm endanger the habitats of mayflies and other life sustaining insects. ...

Air Date: January 11, 2019

Stories from the Streams

Techno Geeks

With the help of new technology, “citizen scientists” can monitor the health of local streams. ...

Air Date: January 11, 2019

Stories from the Streams

Salty Streams

Road salt keeps travelers safe in winter but can pose a serious threat to nearby streams. ...

Air Date: January 11, 2019

Stories from the Streams

Straight from the Source

Scientists use advanced tools to track down the source of potentially harmful contaminants. ...

Air Date: January 11, 2019

Stories from the Streams

Wonders of the Watershed

Discover nature’s perfect way of insuring that rainwater sustains the planet. ...

Air Date: January 11, 2019

Cars are stranded on Columbus Boulevard in Philadelphia on Nov. 26, 2018, after flooding made the road impassable. (Emma Lee/WHYY)
Science

Lots of rain in 2018 made local rivers run high and fast. Will climate change make that a regular thing?

Last year was the second rainiest on record in Philadelphia, with a total 61.6 inches over the year.

7 years ago

Stories from the Streams

Fly, Teachers, Fly

A Philadelphia Eagle joins science teachers for an educational adventure in White Clay Creek! ...

Air Date: January 10, 2019

(AP Photo/Elaine Thompson)
Down the Shore
Science

N.J. bald eagles continues to thrive, survey finds

It was another good year for New Jersey’s bald eagles, a study released by the New Jersey Division of Fish and Wildlife found.

7 years ago

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