Low Library
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Alma Mater’s Other Secret: a Way Forward on Climate
Sitting on the iconic front steps of Low Library, Alma Mater rests on a plinth that offers a clue to a possible method of carbon sequestration, a vital technology for addressing our problem of too much CO2.
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The Columbia Geology Tour: Stories in the Stones
For the last decade or so, Columbia University geologist David Walker has led students and colleagues on a tour of the geologic gems hiding within Columbia’s campus. Along the way, Walker finds evidence of how life on Earth has evolved over 4.5 billion years.

Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026
