Growth and Change

Human populations have grown rapidly, especially over the last century. Understanding how and why populations change helps us manage resources and address environmental challenges.

Factors That Affect Population

Population growth depends on birth rates, death rates, immigration, and emigration. Social, economic, and environmental factors all play a role.

Carrying Capacity

Every environment has a "carrying capacity"—the maximum population it can sustainably support.

Environmental Impact

Larger populations use more resources, create more waste, and can put stress on natural systems. Sustainable solutions involve balancing human needs with environmental health.

Key Points

• Population growth affects resource use and waste.
• Sustainable management is crucial for the future.