<span>Upon the growth of the Industrial Revolution throughout Europe, these new means of production and levels of efficiency caused business owners and factories to excessively increase their usage of fossil fuels, beyond any quantity or extent that had been seen in history prior to that.</span>
Unemployment jumped from less than 3 million in 1929 to "D. 12.5 million" by 1932, since during this time the US was plunged into the Great Depression.
