I participated in a symposium on Technology and Global Change at Oxford last week

A quarter century ago, Arnulf Grübler published a book titled Technology and Global Change.

On June 19th and 20th, 2023, students and colleagues of Arnulf gathered at Oxford for a symposium to honor him and discuss data and methods for understanding technology and global change for the next twenty five years.

The workshop was organized by Charlie Wilson of Oxford and Greg Nemet at the University of Wisconsin, Madison, and was attended by a stellar cast of researchers and practitioners, some of whom I knew, others I was glad to have met for the first time at the workshop.

Here’s a photo of the full cast of characters:

Here’s a photo from our dinner on June 20th:

My talk for the symposium, titled “A rapid tour of long-term trends in the energy efficiency of information technology”, summarized the state of the data on this important topic. You can download it here.


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Koomey researches, writes, and lectures about climate solutions, critical thinking skills, and the environmental effects of information technology.

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