Maybe you've heard about Hubbert peak aka Peak Oil . Otherwise, this threads should be useful for you: Code (Text): https://www.physicsforums.com/showthread.php?t=172175&highlight=hubbert Code (Text): https://www.physicsforums.com/showthread.php?t=184372&highlight=hubbert The global economy it's entirely oil based. From fuel to crops. As soon as the peak oil consequences begin, a global crisis will arise and the industry is going to suffer energy and supplies shortages. Some people are talking about oil substitutes but they're actually more sci-fi related than a real alternative, and some areas like R&D will be affected. In a world with energy, food and medicine scarcity. What kind of careers would be good to follow? We can think about the industries to be disappearing: Oil Engineering Aerospace Electronics Automotive IT Finance Plastics Public transportation Biomedic devices Some chemistry areas Maybe it's hard to say it, but the world won't be able to absorb all the unemployed BA, B Eng, BSc or PhDs. Maybe it's time to learn to work in a farm.