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One of the problems that has most troubled analysts of global ecological crisis is the question of scale. How momentous is the ecological crisis? Is the survival of the human species in question? What about life in general? Are the basic biogeochemical cycles of the planet vulnerable? Although few now deny that there is such a thing as an environmental crisis, or that it is in some sense global in character, some rational scientists insist that it is wrong to say that life itself, much less the planet, is seriously threatened. Even the mass extinction of species, it is pointed out, has previously occurred in evolutionary history. Critics of environmentalism (often themselves claiming to be environmentalists) have frequently used these rational reservations on the part of scientists to brand the environmental movement as "apocalyptic."This article can also be found at the Monthly Review website, where most recent articles are published in full.Click here to purchase a PDF version of this article at the Monthly Review website.
Foster et al. (Thu,) studied this question.