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Energy drives the world and has been the pillar surrounding the modern as well as ancient civilizations. The single most widely used energy source is oil, accounting for approximately 35% of the global demand. Other sources are available, for example, natural gas and coal. Oil is still preferred owing to its availability in abundance and reliability in usage. Its formation is from fossils that were remains of dead decaying organisms and algae over very many years. So, is the world running out of oil? Legitimate question, and whose unraveling involves coming to terms with a few facts on oil.

Since the turn of the industrial revolution, scientists and politicians alike have been keen on the impact industrial activity has had on the environment and future industry trends are under study. Extensive research has been done on environmental matters. Environmental issues are now a matter of global concern in this century.