Chapter 5 review env.

Food security

when food is available for all individuals in a population to a sufficient, nutritious and safe food that supports a healthy active life.

2 reasons for food insecurity

• Drought, flooding

• War conflicts

• Poor farming techniques - depleted nutrients in soil

• Poverty - can’t import resources

How can climate change cause food insecurity?

It can cause crop failure and death of livestock

How can war cause food insecurity?

It can drive off farmers from land which decreases yield

How can poor farming techniques cause food insecurity?

• Depletion of nutrients

• Overuse of water can kill crops

Graph on test- trend production, yield, and area of land being used

• production and yield - decrease

• are usage - increase

Crop depletion

• Drought - crop death

• Bad farming - nutrient depletion

• Increase of pests - damage crops

3 reasons for energy insecurity

• Population growth - requires more energy

• Supply disruption - can’t produce energy

• Natural disasters on energy infrastructure

Oil and coal decrease

• Fossil fuels depletion

• Moving away from fossil fuels due to climate change

Why would hydropower decrease?

• Harmful to aquatic life

• The impact of blocking rivers

• waterways already being used