Earth and Environmental Science

Dissecting the Green New Deal

During what’s likely the largest climate event ever held at Penn, leaders in a range of fields discussed the practicalities and implications of the resolution introduced into Congress in February aimed at stemming climate change.

Michele W. Berger

Inferno in the rainforest

Satellite images have detected more than 100,000 points of fire in the Amazon this year. Scientists Reto Gieré and Alain Plante illuminate some less obvious impacts of the fires, including health threats and climate impacts.

Katherine Unger Baillie

Crowdsourcing 10,000 years of land use

More than 250 archaeologists from around the world contributed their knowledge to ArchaeoGLOBE, an effort to better understand the prevalence of agriculture, pastoralism, and hunting and gathering at different points in human history.

Michele W. Berger

Toxins from the tap

In Pennsylvania and hundreds of other locations around the country, manmade chemicals known as PFAS have been found in drinking water. Howard Neukrug discusses the potential harm, how local and federal agencies are responding, and the many related questions that remain unanswered.

Katherine Unger Baillie



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Atlas Obscura

Found: A 5.5-Million-Year-Old Ancestor of the Red-Eared Slider

Penn student Steven Jasinski found the remains of Trachemys haugrudi, an ancestor of the red-eared slider turtle, suggesting a “once greater diversity” of turtles than today.

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Inside Science

Biodiversity in the Oceans Exploded After Dinosaurs Fell

Lauren Sallan of the School of Arts and Sciences offered commentary on the diversification of marine life in the period following the end-Cretaceous mass extinction.

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