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Earth Shock: Hurricanes, Volcanoes, Earthquakes, Tornadoes, and Other Forces of Nature by Andrew Robinson draws on dramatic evidence of recent years to evaluate the state of the planet - and man's effect on it - in the new century. When will another big shock shake Tokyo or Los Angeles? Can people create deserts and eventually wipe out a civilization? Or are deserts and droughts entirely beyond human control? How are ozone layer and greenhouse effect interlinked? Is global warming a force of Nature - or of man?