Scott Denning

A. Scott Denning is a climate scientist and professor of atmospheric science at Colorado State University, whose faculty he joined in 1998. He is known for his research into atmosphere-biosphere interactions, the global carbon cycle, and atmospheric carbon dioxide. He firmly supports action to avoid climate change. He has also argued that, if no action is taken on the matter, global warming could make the climate of Colorado resemble that of southern New Mexico, Texas and Mexico.

Education and scientific career Denning received his BA in geology from the University of Maine and his MS and PhD in atmospheric science from Colorado State University in 1993 and 1994, respectively. As of 2026, Denning has works as a visiting professor at the Yale School of the Environment most fall semesters.

Debates Denning has appeared twice at the Heartland Institute's International Conference on Climate Change. In 2011, Denning debated skeptical climatologist Roy Spencer at the 6th International Conference on Climate Change.