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Plant growth? Full disclosure-- I've never studied this. However, if we accept that increased levels of carbon dioxide are the result of currently organized production, transportation, distribution etc., and that mode requires and maintains clearing of vast areas of natural plant growth, where is the benefit to plant growth? Somehow I think burning the rain forests in the Amazon to clear the land for cattle raising is of no benefit to the rain forest, or to other forests for that matter. But maybe that's just me. ----- Original Message ----- From: "Paddy Apling" <e.c.apl...@btinternet.com> Not zero, but vastly over-rated and not justifying the hyperbole, just consider the facts; not least its contribution to plant growth - see web-sites, of various scientists including mine at apling.freeservers.com/science.htm awaiting updated links. Paddy http://apling.freeservers.com ________________________________________________ Send list submissions to: Marxism@lists.econ.utah.edu Set your options at: http://lists.econ.utah.edu/mailman/options/marxism/archive%40mail-archive.com