Ecological Footprints
Introduced| English |
|---|
| ecological footprint/ˌekəˈlɒdʒɪkl ˈfʊtprɪnt/ |
| biocapacity/ˌbaɪəʊkəˈpæsɪti/ |
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 measures…
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?
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.
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 生物承载力.
- 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.
Using less energy, eating less meat, and reducing waste all lower your footprint.
These choices reduce the resources you use, shrinking your ecological footprint.
Select all true statements about ecological footprints.
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.