Staple foods will more than double in price by 2050 from extreme temperatures, floods and droughts that will transform the way the world farms. As food experts gather to discuss how to feed the nine billion people expected in 2050, leading scientists state that food insecurity risks turning parts of Africa into permanent disaster areas. Rising temperatures will drastically affect access to basic foodstuffs: "Food production will have to rise 60% by 2050 just to keep pace with expected global population increase and changing demand. The annual production gains we have come to expect … will be taken away by...