Every human produces a little more than 4.5 ounces of excrement per day. Multiplied by the 2.2 million customers of the Philadelphia Water Department’s wastewater system, the cumulative daily dump equals about 620,811 pounds, or about 310 tons. The story of biosolids (treated sewage sludge) starts with clean water in the toilet bowls of the
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At 86, Chestnut Hill resident Sandra Folzer regularly smashes running world records, but her pursuit of physical excellence is secondary to her environmental goal: to remove single-use plastics from racing. In 2024, Folzer, a breast cancer survivor, shaved an astonishing 30 minutes off the 12K record in the women’s masters 85-89 age category. The next
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I would need to book a flight to Portland, Oregon, to see shad runs like Philadelphians once did. That might surprise Delaware Valley residents accustomed to hearing how scarce the once-abundant fish are. But while shad have long suffered in their home range, they have flourished out West. The sleek silver herring is a celebrity
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On Feb. 11, 2025, U.S. Sen. Ted Cruz released a database of 3,483 National Science Foundation grants that the Senate Commerce Committee, headed by Cruz, described in a press release as “woke DEI grants.” Cruz had previously used the list of grants to prepare an October 2024 report claiming that the Biden administration had politicized
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Delaware Riverkeeper Maya K. van Rossum always knew 45 feet was a stopping point on the way down to 50. As head of the Delaware Riverkeeper Network, she led a three-decade battle against the Port of Philadelphia’s plan to deepen the Delaware River’s main shipping channel. Despite environmental concerns and a lengthy lawsuit, the project
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In September 2024, Philadelphians saw their monthly water bills jump by about 12%, the second-largest rate hike that year of any large water system in the country. This year, rates went up by nearly another 10%, now pushing a typical monthly bill close to $100, according to the Philadelphia Water Department. But if these recent
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Uber-urban South Philadelphia might seem an unlikely place to find the next generation of naturalists, environmentalists and outdoor aficionados. But over the past four years, Adam Forbes, founder and director of the Philadelphia-based nonprofit Discovery Pathways, has done exactly that. After early career stops working with migrants, secondary school students and English language learners, Forbes
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On an April morning, Nick Macelko was scouring the Assunpink Creek in Lawrence Township, New Jersey. It was a successful search. He found an acuminate crayfish (Cambarus acuminatus) on the creek bottom. “You can tell because he has that rostrum [part of the head that projects forward] that doesn’t have little spines on it. Cool.”
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I parked my bike at nine in the morning on a heat-dome summer day and walked down the path into the University of Pennsylvania’s James G. Kaskey Memorial Park (better known as the BioPond). Under the tree canopy I immediately felt cooler after my sweaty bike ride. I paused to admire a stately American elm
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In the nine years Julia Jackson lived in Manayunk, just a few streets from the Leverington Avenue bridge, she witnessed her fair share of flooding — and Venice Island residents using the bridge to evacuate from their homes during floods. When she saw that the paper mill site at the island’s northern tip had been
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