Energy Sources and their Impacts

Identify renewable and non-renewable sources of energy.
Describe how energy use changes over time.
Understand the social, economic, and environmental impacts of collecting and using fuelwood in Ethiopia.

Data Summary (Mtoe per year):
- Peak Energy from sources like Oil, Gas, and Coal.
- Renewable technologies are improving, leading to stable development and growth in their usage.
- Countries like Costa Rica rely heavily on renewable sources, while Lithuania and France depend significantly on nuclear energy.

Population Growth and Development:
- Increased demand for energy as global populations grow and development increases.
- Less developed societies primarily use fuelwood for cooking and heating.
Transition of energy sources:
- Early reliance on fuelwood, later shift to fossil fuels due to availability and cost.
- Advanced economies moving towards nuclear energy and more renewable sources due to:
- Environmental concerns on fossil fuels.
- Fossil fuels being finite and their potential depletion.

Non-renewable energy: Energy sources that cannot be replenished in a short time (e.g., coal).
Renewable energy: Energy that comes from sources that are naturally replenished over short periods.
Fossil fuels: Combustible organic materials formed from ancient flora and fauna.
Raw material: Unprocessed materials used to produce goods.

Research required on the social, economic, and environmental impacts of fuelwood collection and burning.
Potential Impact Areas:
- Social: Energy access, health problems from smoke inhalation, and impact on daily life.
- Economic: Dependence on fuelwood affects economic development and contributes to deforestation.
- Environmental: Deforestation, loss of biodiversity, and soil degradation.
Reference for further study: IGCSE Geography and resources available online.