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Climate Change

The Doomsday Clock reveals how close we are to total annihilation
CNN

The Doomsday Clock reveals how close we are to total annihilation

Michael Mann of the School of Arts & Sciences says that the Doomsday Clock, while an imperfect metaphor, remains an important rhetorical device to remind people of the tenuousness of their current existence.

Climate change and atmospheric dynamics unveil future weather extremes
Canal middle agricultural dry by drought and heatwave on summer. water crisis and water stress on summer during long term drought on summer.

A collaborative team of researchers led by Michael Mann of the School of Arts & Sciences have found the interplay of natural systems and human-induced climate change are setting the stage for more frequent and severe weather events.

(Image/iStock / Piyaset)

Climate change and atmospheric dynamics unveil future weather extremes

A collaborative team of researchers led by Michael Mann of the School of Arts & Sciences have found the interplay of natural systems and human-induced climate change are setting the stage for more frequent and severe weather events.
A path to achieve a net-zero greenhouse gas economy
Energy storage systems or battery container units with solar and turbine farms in background.

Image: iStock/PhonlamaiPhoto

A path to achieve a net-zero greenhouse gas economy

A new report co-authored by scientists at Penn’s Kleinman Center and Penn Engineering charts a path for the U.S. to achieve a net-zero greenhouse gas economy by 2050.

From Kleinman Center for Energy Policy

In hot water: Coral resilience in the face of climate change
scuba diver researching coral

Researchers led by Katie Barott collect data from coral populations in Kanohe Bay, Hawaii. 

(Image: Courtesy of Kristen Brown)

In hot water: Coral resilience in the face of climate change

Over a decade, researchers from Penn studied coral species in Hawaii to better understand their adaptability to the effects of climate change.
What happens when humans stop emitting carbon dioxide?
PBS

What happens when humans stop emitting carbon dioxide?

Michael Mann of the School of Arts & Sciences appears on “The Sweaty Penguin” to clarify misconceptions about a “carbon lag” that would supposedly continue warming the planet for decades, even after humans stopped emitting carbon dioxide.

Exchanging climate knowledge at COP28
cop28 exterior

Image: Dominika Zarzycka/NurPhoto via AP

Exchanging climate knowledge at COP28

More than two dozen researchers from schools and centers across the University traveled to Dubai for the UN’s annual climate change conference.