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Physics of disaster: How mudslides move
A few people walk along a mountainside as some vegetation regrows after a wildfire

The Thomas Fire charred the hillsides above Montecito in late 2017, setting up conditions for mudslides in early 2018. (Image: Douglas Jerolmack)

Physics of disaster: How mudslides move

Researchers led by Douglas Jerolmack and Paulo Arratia used samples from the deadly 2018 Montecito mudslides to understand the complex forces at work in these disasters.

Katherine Unger Baillie

In court, the Maryland Public Service Commission quotes climate deniers and claims there’s no such thing as ‘clean’ energy

In court, the Maryland Public Service Commission quotes climate deniers and claims there’s no such thing as ‘clean’ energy

Michael Mann of the School of Arts & Sciences says that climate change deniers are shifting towards the promotion of false solutions like natural gas as outright denial becomes untenable.

A modern history of ancient trees, through the lens of climate change
jared farmer sitting on a bench on college green

Jared Farmer, history professor and chair of graduate studies. (Image: Eric Sucar, University of Pennsylvania).

  • Q&A

    • A modern history of ancient trees, through the lens of climate change

    Historian Jared Farmer discusses his new book, “Elderflora,” looking at why humans have no trouble looking at the ancient past but can’t seem to envision the deep future, and what trees can teach us.

    Kristen de Groot