How do alternative fuels fit into the global warming scenario? Global warming is best explained by a short summary of the carbon cycle.
Carbon is an element necessary for all life; it is necessary for plant, animal and human growth; this growth removes carbon from the atmosphere.
Over millions and billions of years and through geologic processes, like fossilization, coal, oil and natural gas were created and deposited underneath the earth’s surface. Over the past 150 years resulting from industrial and technological advancements, energy demand has increased. To meet demand, humans have harvested, refined and combusted these deposits putting too much carbon into the atmosphere. The earth’s ability to remove increased amounts of atmospheric carbon, like growing a forest, cannot keep up with the amount of carbon remaining.