The environment is one of the most common topics in exam essays, news, and everyday conversation. This guide covers the real vocabulary you need to discuss climate, wildlife and sustainability with genuine confidence and precision.
2. Climate & Climate Change
Word
Meaning
climate change
the long-term shift in global weather patterns
global warming
the rise in the Earth's average temperature
carbon footprint
the amount of CO2 your activities produce
greenhouse gases
gases that trap heat in the atmosphere
extreme weather
unusually severe weather events
3. Wildlife & Ecosystems
Word
Meaning
endangered
at serious risk of dying out
extinct
no longer existing anywhere
habitat
the natural environment where a species lives
biodiversity
the variety of species in an ecosystem
deforestation
the clearing of forests, usually for other use
4. Sustainability & Green Living
Phrase
Example
to go green
Our company is trying to go green this year.
renewable energy
Solar and wind are forms of renewable energy.
to recycle
We recycle most of our household waste.
single-use plastic
Many shops have banned single-use plastic bags.
5. Common Mistakes
❌ Incorrect
✅ Correct
Why
The weather is changing. (meant: long-term climate)
The climate is changing.
"Weather" is short-term; "climate" is the long-term pattern being discussed.
This animal is in danger of extinct.
This animal is endangered. / This animal is at risk of extinction.
"Extinct" is an adjective for something already gone, not a state something can be "in danger of" directly.
We must protect the nature.
We must protect nature. / We must protect the environment.
"Nature" is usually uncountable and used without "the" in general statements.
6. Exercises
A. Gap Fill — Complete correctly (8 questions)
1. Solar power is a form of ___ energy. (renewable)
2. The polar bear is an ___ species. (endangered)
3. We should all try to reduce our carbon ___. (footprint)
4. The dodo became ___ centuries ago. (extinct)
5. ___ is destroying forests around the world. (Deforestation)
6. Our company is trying to go ___ this year. (green)
7. We recycle most of our household ___. (waste)
8. Rainforests have incredible ___. (biodiversity)
1. The natural environment where a species lives is its... (a) habitat (b) footprint
2. Gases that trap heat are called... (a) greenhouse gases (b) biodiversity
3. No longer existing at all is... (a) extinct (b) endangered
4. The long-term weather pattern of a region is its... (a) climate (b) weather
5. Plastic bags used once and thrown away are... (a) single-use (b) renewable
Show Answers (B)
1.a 2.a 3.a 4.a 5.a
C. Error Correction (3 questions)
1. The weather is changing. (meant: long-term climate)
2. This animal is in danger of extinct.
3. We must protect the nature.
Show Answers (C)
1. The climate is changing. 2. This animal is endangered. 3. We must protect nature.
D. Freer Practice — Write Your Own Sentences (2 tasks)
1. Write a sentence giving your opinion on climate change, using at least two vocabulary words from this page.
2. Write a sentence describing something you do to live more sustainably.
Show Answers (D)
Model answers will vary. Examples: 1. "I think governments need to invest more in renewable energy to fight climate change." 2. "I try to reduce my carbon footprint by cycling to work."
7. Mini Quiz
8. Exam Focus — Cambridge, IELTS, SELT
Exam
How This Is Tested
Sample Question
Cambridge B2 First / C1 Advanced
Environmental topics appear regularly in Reading and Writing.
An essay on "What can individuals do to help the environment?"
IELTS Writing Task 2
The environment is one of the most frequent essay topics.
"Some believe climate change is the biggest challenge facing humanity. Discuss."
Trinity ISE II/III (SELT)
Environmental opinions may come up in higher-level discussion topics.
"What do you think about recycling in your country?"
9. Frequently Asked Questions
Weather is short-term, day-to-day conditions; climate is the long-term pattern of weather in a region over many years.
To lower the amount of carbon dioxide your activities produce, a common phrase in discussions about individual environmental responsibility.
"Renewable" describes a resource that naturally replenishes (renewable energy like solar or wind); "sustainable" more broadly means able to continue without depleting resources long-term.
To start living in a more environmentally friendly way: "Our company is trying to go green this year."
"Endangered" means a species is at serious risk of dying out but still exists; "extinct" means it no longer exists at all.
Yes — the environment is one of the most common Writing Task 2 and essay topics across IELTS and Cambridge exams.
📅 Ready to Discuss the Environment with Confidence?
Reading a vocabulary list takes you part of the way. Real fluency comes from using these words in conversation, with a tutor who corrects you immediately. Book a free level test with Elite Language Solutions and find out exactly where you are.