How do people learn about global warming?

That—more than the merits of any scientific argument—is the most interesting question posed by Michael Crichton's State of Fear.

The plot of Crichton's 14th novel is notable mainly for its nuttiness—an MIT professor fights a wellfunded network of eco-terrorists trying to kill thousands by creating spectacular "natural" disasters. But Crichton uses his book as a vehicle for making two substantive arguments. In light of Crichton's high profile and ability to command media attention, these arguments deserve scrutiny.

First, Crichton argues, the scientific evidence for global warming is weak. Crichton rejects many of the conclusions reached by the National Academy of Sciences and Intergovernmental Panel on Climate Change—for example, he does not believe that global temperature increases in recent decades are most likely the result of human activities. In challenging the scientific consensus, Crichton rehashes points familiar to those who follow such issues. These points are unpersuasive, as explained below.

Second, Crichton argues that concern about global warming is best understood as a fad. In particular, he argues that many people concerned about global warming follow a herd mentality, failing critically to examine the data. Crichton is especially harsh in his portrayal of other members of the Hollywood elite, though his critique extends more broadly to the news media, intelligentsia and general public. This argument is more interesting and provocative, though ultimately unpersuasive as well.

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