Unit 2: people and the planet

• Rate of population growth is expected to slow down.
• Population change is produced by natural change and migration change.
• Natural change depends on birth and death rate - More births than deaths means population increase and vice versa.
• Migration is movement of people into and out of an area or country. if immigrants exceed emmigrants, population increases.
• Change in otal global population results only form natural change as migration just alters the distribution, not numbers of people on the planet.

FALLING DEATH RATE:

• modern medicines
• vaccines
• better healthcare - more doctors
• more hygienic housing
• cleaner drinking water
• better sewage disposal
• better diets
• lower infant mortality

Global population is increasing but distribution across the planet is changing.

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