There is an ad running on one of our local radio stations that states, " due to population growth, more food will need to be produced over the next 50 years than has been produced in the last 10,000 years." Must have heard this ad 5 times on Saturday while hauling cows out to graze stalks. The concept still blows my mind. Not sure if it's true or not, but the colleges and universities are teaching the same thing. Son #1 is a junior majoring in finance/accounting. He says his professors talk about future food needs and energy needs constantly, as this will make up the lions share of most people's expenses for existence based on projected population growth and food/energy availability.