Factors
Factors affecting food production/security include:
- Increased population.
- Changing diets in developed countries.
- New pests and pathogens that destroy crops.
- Climate change - crops fail.
- Conflicts.
Farming Techniques
- Farmers aim to increase the efficiency of energy to biomass.
- This is done by reducing energy transferred from animals to environment by:
- Raising in cages so there is less movement
- Kept is areas of high temperature to recue energy on controlling body temperature
- given high protein foods
Sustainable Fisheries
- Some fish are being caught faster than they reproduce so the population decreases.
- To avoid this restrictions are put in place
- Net sizes increased so smaller fish are not caught
- Fishing quotas so not too many are caught