The circular economy: 6. Population, resources and the price of bread.
The science: As population rises, resources will become rarer or in shorter supply. That will not only put prices at the retail shop up, they will fluctuate progressively more.
The bad news: In rich countries, commodity prices will certainly go up. In poor countries, prices will go up too far for survival and people will either die of migrate.
The good news: Population rate of increase is falling (but most observes would agree we must do more). As an agricultural scientist, I do believe that we have the technology to feed the world provided we stop breeding people right now. Feeding a greater population will certainly increase resource use and that means we have to dramatically increase efficiency as well as total output.
Bill Butterworth 26 March 2016
P.S. Try the book, “Reversing global warming for profit”, by Bill Butterworth, published by MX Publishing, available from all good bookshops or on line at Amazon.