The Economics of Climate Change

Dr. Derek Lemoine of the University of Arizona Eller School of Management.

This presentation was made on March 17, 2026. You may view it on YouTube at https://youtu.be/U2Vx9MlzyFw

A transcript of the discussion can be viewed here.

A copy of Dr. Lemoine’s slides can be downloaded here.

Synopsis

A University of Arizona economics professor says his research shows climate change has reduced U.S. income by an estimated 12%.

Dr. Derek Lemoine, a professor in UA’s Eller College of Management and co-director of the university’s Consortium of Environmentally Resilient Business, said measuring climate change’s current economic impact has large-scale, long-term implications for policy-making and business investment.

If we can’t figure out what climate change is already costing us with the data we have, projecting the future becomes almost hopeless,” said Lemoine, lead author of a new study published in the journal Proceedings of the National Academy of Sciences, said in a UA news release.

In addition to summarizing his new paper estimating recent losses from climate change, other topics will include:

  • Why it’s really hard to project economic damages from climate change
  • Alternate climate policies that uses markets to project damages