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Oakify Philadelphia

By Noah Raven and Francis Raven We filled our backpacks with over a dozen trees: chestnut oaks, black cherries and red mulberries, as well as two shovels, a pair of clippers, two pairs of gloves and several wooden stakes to label each of the seedlings. Our goal was to plant them in a degraded area

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4 mins read
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Science History Institute exhibit explores the history and environmental impact of dyes

For thousands of years, people used organic materials like plants, insects and minerals to create dyes. But in 1856, an 18-year-old chemistry student named William Henry Perkin changed everything. While attempting to create synthetic quinine using coal tar, Perkin accidentally developed mauveine, the world’s first synthetic dye. His invention of the rich purple hue unlocked

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4 mins read
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(Updated with public comment opportunity) The EPA has proposed making the Delaware River cleaner for endangered sturgeon, but getting there won’t be easy, or cheap

Update: Would you like to weigh in on the EPA’s proposed dissolved oxygen standards in the Delaware River? The public can provide comments about the proposed regulation changes through the EPA website no later than February 20, 2024.   By Meg McGuire and Katherine Rapin In December 2023, the U.S. Environmental Protection Agency made a bold

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7 mins read
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A York County reservoir project could be part of a sustainable grid. It would also displace dozens of households

Update: On February 1, 2024, the Federal Energy Regulatory Commission (FERC) issued a preliminary permit to York Energy Storage, LLC for the pumped hydroelectric storage project the company is proposing in York County. The preliminary permit gives York Energy Storage priority for building a project on the site (essentially calling dibs) and opens up a

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7 mins read
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EPA Tightens Air Pollution Standards

Tighter air pollution limits announced by the EPA on February 7 should have Philadelphians breathing easier. The new rule sets the limit, averaged over a year, of nine micrograms of tiny soot particles per cubic meter of air. “This final air quality standard will save lives and make all people healthier, especially within America’s most

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1 min read
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Our heritage trees are on the chopping block, again

I am standing in the Meadows, at the southwest corner of FDR Park, in a 33-acre mud pit roughly the size of eleven city blocks. Where once stood a mature woodland, now stands a vast strip of nothing—with an unimpeded view of I-95. The pit is prickled with hundreds of almost indiscernible, twiggy saplings. I

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13 mins read