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Imagine a world without carbon dioxide (C[O.sub.2]). It would be a world without life. Plants of all kinds, from the greatest of the world's stately trees to the smallest single-celled algae, would disappear. Gone too would be the herbivorous creatures, including the elk and deer of the forest and the ox and horse of the pasture. Without the herbivores to prey upon, the great carnivores would disappear as well. Finally, without the plants and the animals, man too would disappear.
As every schoolchild knows, plants need C[O.sub.2], and the food chain, leading inexorably to man, depends upon plants. Fortunately, there is no shortage of C[O.sub.2] in the atmosphere ...
Source: HighBeam Research, A greener future: science has demonstrated that plant life and food...