Knowledge Organiser: Finite and Renewable Resources
Key Terms
- Finite resource: Cannot be replenished on human timescales (e.g. coal, oil, metal ores, uranium)
- Renewable resource: Naturally replenished within human timescales (e.g. solar, wind, biomass)
- Sustainable development: Meeting today's needs without harming future generations' ability to meet theirs
- Circular economy: Economic model that eliminates waste — reuse, repair, recycle
Must-Know Facts
- Fossil fuels take millions of years to form — we burn them millions of times faster than they form
- Nuclear fuel (uranium) is FINITE, not renewable
- The 4 Rs: Reduce, Reuse, Recycle, Replace
- Renewable resources can still be depleted if used unsustainably (e.g. deforestation)
- Environmental impacts of finite resource extraction: habitat destruction, pollution, climate change
- Renewable energy benefits: no fuel costs, minimal operation emissions, energy security
Key Equations
- No calculation equations — descriptive/evaluative topic
- Sustainable development: meet current needs without compromising future generations' ability to meet theirs
- Circular economy: reduce → reuse → recycle → recover → dispose (in order of preference)
Common Mistakes
- Saying nuclear energy is renewable: Nuclear fuel (uranium) is a FINITE resource — it cannot be replenished on human timescales, even though it produces no CO₂
- Saying renewable energy has no environmental impact: Solar panels and wind turbines still require raw material extraction and manufacturing — they have a lower environmental impact, not zero
- Forgetting sustainable development has an economic dimension: Sustainable development must balance environmental, social AND economic needs — not just environmental protection
- Saying reducing is less important than recycling: In the waste hierarchy, REDUCING consumption is the highest priority — recycling comes after reducing and reusing
Memory Aid
- Reduce — use less
- Reuse — use again without reprocessing
- Recycle — reprocess into new material
- Replace — switch to a renewable alternative