Whiplash!

Over the course of 2014 the prices the world pays for crude oil have tumbled from over $125 per barrel to around $45 per barrel now, and could easily drop further before heading much higher before collapsing again before spiking again. You get the idea. In the end, the wild whipsawing of the oil market, and the even wilder whipsawing of financial markets, currencies and the rolling bankruptcies of energy companies, then the entities that financed them, then national defaults of the countries that backed these entities, will in due course cause industrial economies to collapse. And without a functioning industrial economy crude oil would be reclassified as toxic waste. But that is still two or three decades off in the future.