The Great Concavity is a heavily-polluted region of New England that was “gifted” to Canada during the formation of O.N.A.N. In Canada, it is referred to as the “Great Convexity” rather than Concavity, a humorous nod to the fact that the shape of the area looks different depending on the angle from which it is viewed. The Great Concavity is symbolic of the fact that the world of the novel is something of a corporate dystopia, in which serious environmental damage has been trigged by high-consumption, wasteful capitalist culture and neither corporations nor governments take responsibility for this environmental damage. The novel includes transcripts of the meetings between government representatives in which it was decided that the U.S. would “give” the Great Concavity to Canada. These transcripts portray political leaders as entirely corrupt and ludicrously incompetent. The existence of the Great Concavity also lends some credibility to the A.F.R.’s separatist impulses. Many Québécois separatists cite the Great Concavity as one of the main reasons why they want independence from Canada and O.N.A.N.; this is especially personal for A.F.R. member Rémy Marathe, whose wife, Gertraude, is one of the many people who has been severely disabled by exposure to the region’s toxicity. In this sense, the existence of the Great Concavity indicates that the separatist movement is actually not entirely unreasonable.
