Last updated: 24 juin 2026
Vocabulary Guide: Environment & Ecology

Vocabulary Guide: Environment & Ecology (Exam Essential)
Total Word Count: 1,850+ words
The Environment is the #1 most frequent topic in TEF and TCF exams. You might be asked to:
- Read an article about plastic waste (Section C).
- Convince a friend to carpool (Speaking Task B).
- Write an email to the mayor about recycling (Writing Task A).
You cannot pass with just "C'est bon pour la planète." You need C1 precision.
This guide covers the essential verbs, nouns, and catchy phrases for Ecology.
Part 1: The "Problem" Vocabulary (Negative)
To describe the crisis, you need strong words.
Nouns
- Le réchauffement climatique (Global warming).
- Le changement climatique (Climate change).
- L'effet de serre (Greenhouse effect).
- Les énergies fossiles (Fossil fuels - coal, oil, gas).
- L'empreinte carbone (Carbon footprint).
Part 2: The "Solution" Vocabulary (Positive)
To propose solutions (Task B), you need these terms.
Nouns
- Le développement durable (Sustainable development).
- Les énergies renouvelables (Renewable energies - solar, wind).
- Le covoiturage (Carpooling).
- Le tri sélectif (Recycling/Sorting waste).
- L'énergie éolienne / solaire (Wind / Solar energy).
Part 3: Collocations (Word Pairs)
Examiners love correct word pairings.
Part 4: Speaking Task B Formulas (Persuasion)
Scenario: Convince a friend to stop buying plastic water bottles.
Arguments:
1. Economic Argument:
- "Tu sais, acheter de l'eau en bouteille coûte cher. Si tu installes un filtre, tu vas faire des économies sur le long terme."
2. Ecological Argument:
Part 5: Writing Arguments (Essay)
Topic: "Technology helps or harms the environment?"
Useful sentences:
Part 6: Practice Quiz
Translate these concepts:
- Greenhouse gas -> Gaz à effet de serre (GES).
- To sort your trash -> Trier ses déchets.
- Eco-friendly -> Écologique / Éco-responsable.
- It harms nature -> Cela nuit à la nature.
- To waste water -> Gaspiller l'eau.
Conclusion
If you only learn one vocabulary theme, make it Ecology. It appears in almost every exam session. Master verbs like Nuire, Épuiser, Préserver, Sensibiliser. They are your weapons for a C1 score.