4.7.5.1 factors affecting food security

• what is food security?

  having enough food to feed a population
• what are the factors that threaten food security?

  • increasing birth rates and world population
  • changing diets in developed countries
  • new pests and pathogens becoming more resistant
  • environmental changes due to global warming
  • increased cost of agriculture
  • world conflicts affecting food or water
• why must sustainable methods be found?

  to feed all people on earth
• what does sustainable food mean?

  the rate of using food and rate of producing is equal
• what can we do to produce more sustainable food?

  • maintaining soil quality so plant crops grow well each year
  • finding more efficient ways to produce food
  • taking care of ocean fish stocks to avoid overfishing