624
Opinion of the Court
fied by that shared experience, the predominance criterion is far more demanding. See 83 F. 3d, at 626-627. Given the greater number of questions peculiar to the several categories of class members, and to individuals within each category, and the significance of those uncommon questions, any overarching dispute about the health consequences of asbestos exposure cannot satisfy the Rule 23(b)(3) predominance standard.
The Third Circuit highlighted the disparate questions undermining class cohesion in this case:
"Class members were exposed to different asbestos-containing products, for different amounts of time, in different ways, and over different periods. Some class members suffer no physical injury or have only asymptomatic pleural changes, while others suffer from lung cancer, disabling asbestosis, or from mesothelioma . . . . Each has a different history of cigarette smoking, a factor that complicates the causation inquiry.
"The [exposure-only] plaintiffs especially share little in common, either with each other or with the presently injured class members. It is unclear whether they will contract asbestos-related disease and, if so, what disease each will suffer. They will also incur different medical expenses because their monitoring and treatment will depend on singular circumstances and individual medical histories." Id., at 626.
Differences in state law, the Court of Appeals observed, compound these disparities. See id., at 627 (citing Phillips Petroleum Co. v. Shutts, 472 U. S. 797, 823 (1985)).
No settlement class called to our attention is as sprawling as this one. Cf. In re Asbestos Litigation, 90 F. 3d, at 976, n. 8 ("We would likely agree with the Third Circuit that a class action requesting individual damages for members of a global class of asbestos claimants would not satisfy [Rule 23] requirements due to the huge number of individuals and
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