Philadelphia’s park system is many things. It is big, but much of it is difficult to access. Some sections are practically ancient, home to historic buildings hundreds of years old; one even dates back to New Sweden. At the same time, the system is constantly being renovated. If you’re lucky, you might have a new
More
I am desperate for American chestnut trees to make a comeback, even though I know that it’s not happening anytime soon. I long to see our woods as they were 150 years ago. The forager in me misses the chestnuts I never got to gather from the forest floor. As Jessie Buckner writes in her
More
By Meg McGuire and Katherine Rapin In December 2023, the U.S. Environmental Protection Agency made a bold move for the Delaware River, proposing to raise the water quality standards in the estuary for the first time since the Clean Water Act of 1972. This upgrade would increase requirements for dissolved oxygen levels among the foundational
More
Skeptics of the green energy movement have always asked: What do you do when there’s no sun for the solar panels and no breeze to stir the blades of the windmill, but you still need power? Batteries can store excess energy created when the conditions are favorable to be used for precisely those times —
More
In a scene from the PBS docuseries “NOVA: Chasing Carbon Zero,” Chef Chris Galarza removes an ice cold frying pan from a freezer and places it on an induction burner. Only a moment later, he tosses some chopped peppers in the pan, which immediately start to sizzle. This impossible-seeming trick is one that Galaraza has
More
Hydrogen as an element is simple. Each atom has one electron and one proton. It’s first on the periodic table — the most abundant chemical substance in the universe. But hydrogen as a potential climate-friendly energy source is anything but simple. Hydrogen has long been used in dirty industries: cleaved from fossil fuels, it can
More
What are we doing to this planet, and what are we doing about what we’re doing to this planet? No writer’s body of work surpasses Elizabeth Kolbert’s to answer these questions. Kolbert has been a staff writer for The New Yorker for 25 years, documenting climate change with an unflinching eye. Her first book on
More
When he first saw workers changing out the streetlights on his block in Chestnut Hill, Timothy Breslin didn’t think much of it. He went to bed that night in the summer of 2022 without issue. In the daylight, he still didn’t register the changes. But when night fell, his street full of modest rowhomes was
More
If anything defines us as modern humans it is the degree to which we apply scientific knowledge to accomplish our goals. Long gone are the days when we chipped away at flint blocks to make hand axes, and it has been a couple centuries since we wrote important documents on parchment with quill pens. Technology
More
Samuel Velasquez operates La Marqueza Philly, a colorful Mexican food truck near the Community College of Philadelphia. Before the City’s plastic bag ban, his customers received their orders in disposable plastic bags. These days, unless those customers offer up their own reusable bags, their orders come in paper bags. As a step towards mitigating the
More