Readers of the blog likely recall this lawsuit, brought by climate scientist Michael Mann against columnist Mark Steyn, blogger Rand Simberg, the National Review, and the Competitive Enterprise Institute (see our various posts on the subject). The National Review and CEI had been granted summary judgment in 2021, but in January 2024, the jury found Steyn and Simberg liable for defamation, to the tune of $1 compensatory damages + $1M punitives against Steyn, and $1 compensatory + $1K punitives against Simberg.
For a very quick summary of the facts, from Justice Alito's 2019 dissent from denial of certiorari:
Penn State professor Michael Mann is internationally known for his academic work and advocacy on the contentious subject of climate change. As part of this work, Mann and two colleagues produced what has been dubbed the "hockey stick" graph, which depicts a slight dip in temperatures between the years 1050 and 1900, followed by a sharp rise in temperature over the last century. Because thermometer readings for most of this period are not available, Mann attempted to ascertain temperatures for the earlier years based on other data such as growth rings of ancient trees and corals, ice cores from glaciers, and cave sediment cores. The hockey stick graph has been prominently cited as proof that human activity has led to global warming. Particularly after emails from the University of East Anglia's Climate Research Unit were made public, the quality of Mann's work was called into question in some quarters.
Columnists Rand Simberg and Mark Steyn criticized Mann, the hockey stick graph, and an investigation conducted by Penn State into allegations of wrongdoing by Mann. Simberg's and Steyn's comments, which appeared in blogs hosted by the Competitive Enterprise Institute and National Review Online, employed pungent language, accusing Mann of, among other things, "misconduct," "wrongdoing," and the "manipulation" and "tortur[e]" of data.
