Ecological Footprints
Introduced| English | Meaning |
|---|---|
| ecological footprint/ˌekəˈlɒdʒɪkl ˈfʊtprɪnt/ | An estimate of the biologically productive land and water needed to support resource use and absorb associated wastes. |
| biocapacity/ˌbaɪəʊkəˈpæsɪti/ | biocapacity |
Measuring our demand
- Everything we use — food, energy, homes, gadgets — takes resources from Earth.
- Some people and countries use far more than others.
- How do we measure and compare this demand?
- The answer is the ecological footprint.
What a footprint is
- An ecological footprint 生态足迹 is the area of land and water a person or country needs.
- It covers the resources they use and the waste they produce.
- A big footprint means a heavy demand on the planet.
- Wealthy, high-consumption lifestyles have the largest footprints.
An ecological footprint larger than the Earth's biocapacity 生物承载力 per person (illustrative)
An ecological footprint measures…
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An ecological footprint is the area of land and water needed to supply a person's resources and absorb their waste.
What makes it bigger
- Using lots of energy, especially from fossil fuels, raises the footprint.
- Eating lots of meat, which is resource-heavy, raises it too.
- Driving everywhere and buying many goods add more.
- The more we consume, the larger our footprint grows.
Which lifestyle tends to have the largest ecological footprint?
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Using lots of energy, meat, and cars gives a large footprint; simple, low-resource living lowers it.
When humanity uses resources faster than Earth can renew them, we ____ Earth's capacity.
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When our total footprint exceeds Earth's biocapacity, we overshoot — using more than the planet can sustain.
Living within Earth's limits
- Earth has a limited capacity to supply resources — its biocapacity.
- Humanity's total footprint now overshoots what Earth can renew.
- Using less energy, less meat, and less waste shrinks your footprint.
- Living within Earth's limits is the goal of sustainability.
Bigger or smaller footprint?
Sort each choice by whether it raises or lowers a person's ecological footprint.
Eating more meat and using more energy lowers your ecological footprint.
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False. Both increase the resources you use. Using less energy, eating less meat and reducing waste shrink your ecological footprint.
Select all true statements about ecological footprints.
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Footprints vary hugely between people and countries. The other three are correct.
Footprints are deeply unequal. A person in a wealthy, high-consumption country can have a footprint many times larger than someone in a poorer country. So "living sustainably" means very different things depending on how much you already consume — the biggest footprints have the most room to shrink.
Two lifestyles compared:
- Person A drives a big car, eats meat daily, and buys lots of goods — a large footprint.
- Person B cycles, eats mostly local plants, and wastes little — a small footprint.
- If everyone lived like A, we would need several Earths; living like B, far fewer resources are used.
An ecological footprint measures the land and resources a person or country uses (and the waste they make). High energy use, meat, and consumption raise it; simple, low-resource living lowers it. When humanity's footprint overshoots Earth's biocapacity, we use more than the planet can sustain.