Technology the practical application of scientific principles. Normal accident an accident that occurs inevitably although unpredictably because of the complexity of modern technologies. We argue against the view that scientific and engineering wizards are in control. We focus on environmental degradation in general and global warming in particular. We argue that market and technological solutions are insufficient by themselves much self-sacrifice, cooperation and political activism will be required. Technology and people make history: technological determinism the belief that technology is the main factor shaping human history. Global warming: the accumulation of carbon dioxide allows more solar radiation to enter the atmosphere and less heat to escape which contributes to global warming, as temperature rise, more water evaporates. Higher levels of carbon dioxide in the air interact with bodies of water to produce carbonic acid, destroying plant and animal life in oceans and lakes. Global warming the gradual worldwide increase in the average surface temperature.