Contrary to chant small Commissioners of the carbon purity, there has never been consensus but rather a violent dissent on the issue of "global warming". With us Claude Allegre is the tip of the iceberg, so chief media file of a "nay-sayers". Note that it does not deny the (mild) warming at the end of last century, he rails against his fellow scientists focused instead on this easy "fight" against too abstract CO2 triggers cascading subsidies, at the expense of real priorities scientific and ecological. Clearly, even if Allegre can write well, he accuses climatologists yes-ouistes masturbate climate mammoth, and to be (over) paid / subsidized for that. Is right. The work of "climatologists" concerned only result was to increase the "meteorological science" (oxymoron) forecast prediction and now speculation. As for this book, I give him a very average note: some chapters are instructive, but the work appears sloppy, written too fast, often inspired other works which are not mentioned or barely. As for solutions, they are sometimes very questionable.