Exercise 1
Choose the correct word to complete each sentence about the environment, climate and sustainability.
Example: The burning of fossil fuels is a major cause of ___. (air pollution / water pollution / soil erosion)
Answer: The burning of fossil fuels is a major cause of air pollution.
Environment, Climate and Sustainability: Advanced Vocabulary for B2 Learners
Our planet is changing fast. From melting ice caps to devastating wildfires, the language of environment, climate and sustainability has moved from scientific journals into everyday conversation. Whether you are reading an international news article, participating in a debate, or writing a formal report, you need precise, confident vocabulary to express complex environmental ideas clearly.
Consider this situation: Amara, a university student in London, is preparing a presentation on global climate policy. She needs to explain the difference between climate change mitigation and adaptation, discuss carbon footprints, and argue for sustainable development. Without the right vocabulary, her message will lack authority and clarity. This lesson gives you exactly the language Amara — and you — need.
Key Vocabulary & Meaning Breakdown
1. Climate Change & Environmental Threats
| Word / Phrase | Part of Speech & Meaning | Example Sentence | Collocations / Notes |
|---|---|---|---|
| climate change | noun phrase — long-term shifts in global temperatures and weather patterns, largely driven by human activity | Governments around the world are under pressure to take decisive action on climate change. | tackle / address / combat / deny climate change |
| global warming | noun phrase — the gradual rise in Earth's average surface temperature due to increased greenhouse gas emissions | Scientists warn that limiting global warming to 1.5°C will require rapid, far-reaching changes across society. | accelerate / halt / reverse global warming; often used interchangeably with climate change but is more specific |
| greenhouse gas | noun phrase — a gas (e.g. carbon dioxide, methane) that traps heat in the atmosphere and contributes to warming | The transport sector is one of the largest sources of greenhouse gas emissions in developed countries. | emit / release / cut greenhouse gases; greenhouse gas emissions |
| deforestation | noun (uncountable) — the large-scale removal of forests, often for agriculture or urban development | Widespread deforestation in the Amazon basin has accelerated the loss of biodiversity. | rampant / widespread deforestation; halt / drive / contribute to deforestation |
| biodiversity | noun (uncountable) — the variety of plant and animal life in a particular habitat or on Earth as a whole | Protecting biodiversity is essential for maintaining the ecosystems that support human life. | rich / threatened biodiversity; loss of biodiversity; biodiversity hotspot |
| ecosystem | noun (countable) — a complex network of living organisms interacting with each other and their physical environment | Coral reefs are among the most fragile and valuable ecosystems on the planet. | fragile / marine / terrestrial ecosystem; damage / destroy / restore an ecosystem |
| extreme weather event | noun phrase — an unusual and severe weather occurrence such as a flood, drought, heatwave, or hurricane | Insurance companies are reporting a sharp rise in claims linked to extreme weather events. | trigger / withstand / recover from an extreme weather event; increasingly frequent extreme weather |
| drought | noun (countable/uncountable) — a prolonged period of abnormally low rainfall, leading to water shortages | The region experienced its worst drought in a century, devastating local agriculture. | severe / prolonged drought; suffer from / cause a drought; drought-stricken |
| sea level rise | noun phrase — the increase in the level of the world's oceans due to melting ice and thermal expansion of water | Coastal cities face an existential threat from sea level rise over the coming decades. | accelerating / projected sea level rise; sea level rise threatens / affects |
2. Sustainability & Green Solutions
| Word / Phrase | Part of Speech & Meaning | Example Sentence | Collocations / Notes |
|---|---|---|---|
| sustainability | noun (uncountable) — the ability to meet present needs without compromising the ability of future generations to meet theirs | The company has embedded sustainability into every aspect of its supply chain. | environmental / long-term sustainability; promote / prioritise / embed sustainability |
| renewable energy | noun phrase — energy from sources that are naturally replenished, such as solar, wind, or hydroelectric power | Investing in renewable energy infrastructure is widely seen as key to reducing carbon emissions. | transition to / invest in / generate renewable energy; renewable energy sources / sector |
| carbon footprint | noun phrase — the total amount of greenhouse gases, particularly carbon dioxide, produced directly or indirectly by an individual, organisation, or activity | More consumers are choosing plant-based diets in an effort to reduce their carbon footprint. | reduce / calculate / offset a carbon footprint; large / small carbon footprint |
| carbon neutral | adjective — achieving a balance between the amount of carbon emitted and the amount removed from the atmosphere | The airline has pledged to become carbon neutral by 2040 through a combination of efficiency measures and offsetting. | become / go / remain carbon neutral; carbon neutral target / goal |
| net zero | adjective / noun phrase — the point at which total greenhouse gas emissions are balanced by removals, resulting in no net addition to the atmosphere | Reaching net zero by 2050 is now a legally binding commitment for the UK government. | achieve / reach / commit to net zero; net zero emissions / target / economy |
| circular economy | noun phrase — an economic system that aims to eliminate waste by keeping materials in use for as long as possible through reuse, repair, and recycling | Transitioning to a circular economy model could significantly reduce industrial waste and resource consumption. | move towards / adopt / embrace a circular economy; circular economy principles / model |
| carbon offsetting | noun (uncountable) — the practice of compensating for carbon emissions by funding equivalent carbon-saving projects elsewhere | Critics argue that carbon offsetting allows companies to avoid making genuine reductions in their emissions. | rely on / invest in carbon offsetting; voluntary carbon offsetting scheme |
| eco-friendly | adjective — not harmful to the environment; designed to have minimal environmental impact | The new packaging is made from fully eco-friendly materials that can be composted at home. | eco-friendly product / packaging / alternative; increasingly / genuinely eco-friendly |
| sustainable development | noun phrase — economic and social development that meets current needs while preserving environmental resources for the future | The United Nations has outlined 17 Sustainable Development Goals to guide global progress towards sustainable development. | promote / achieve / hinder sustainable development; sustainable development goals (SDGs) |
3. Policy, Action & Responsibility
| Word / Phrase | Part of Speech & Meaning | Example Sentence | Collocations / Notes |
|---|---|---|---|
| mitigation | noun (uncountable) — actions taken to reduce or prevent the severity of climate change, primarily by cutting emissions | Rapid mitigation measures are needed if we are to avoid the most catastrophic effects of climate change. | climate / carbon mitigation; mitigation strategy / measure / effort |
| adaptation | noun (uncountable) — adjusting systems and practices to cope with the current and future effects of climate change | Coastal communities are investing in flood defences as a form of climate adaptation. | climate adaptation; adaptation strategy / measure; adapt to climate change |
| greenwashing | noun (uncountable) — the practice of making misleading or unsubstantiated claims about the environmental benefits of a product or policy | Environmental groups accused the oil company of greenwashing after it launched an advertising campaign focused on its minor renewables investment. | engage in / accused of greenwashing; corporate greenwashing |
| carbon tax | noun phrase — a government levy on the carbon content of fossil fuels, designed to incentivise the reduction of emissions | Economists broadly support the introduction of a carbon tax as the most efficient mechanism for cutting emissions. | introduce / impose / oppose a carbon tax; carbon tax revenue / policy |
| fossil fuels | noun phrase (plural) — non-renewable energy sources formed from ancient organic matter, including coal, oil, and natural gas | The international community is under increasing pressure to phase out subsidies for fossil fuels. | burn / phase out / subsidise fossil fuels; dependence on fossil fuels; fossil fuel industry |
| environmental degradation | noun phrase — the deterioration of the natural environment, including pollution, habitat loss, and depletion of natural resources | Environmental degradation in the region has been linked directly to unregulated industrial activity. | cause / accelerate / reverse environmental degradation; severe environmental degradation |
| climate refugee | noun phrase — a person forced to leave their home region due to climate-related disasters or environmental changes such as flooding or desertification | The United Nations predicts that millions of people could become climate refugees by the end of this century. | become / be classified as a climate refugee; climate refugee crisis / displacement |
| environmental activism | noun phrase — the practice of campaigning for the protection of the environment and pushing for systemic change | Youth-led environmental activism has placed significant political pressure on world leaders to act more urgently on emissions. | youth / grassroots environmental activism; engage in / support environmental activism |
Collocations & Useful Expressions
At B2 level, using the right collocation — the natural word combinations that native speakers use — is what makes your English sound fluent and authoritative. Here are the most important collocations for the topic of environment, climate and sustainability.
Verb + Noun Collocations
tackle + climate change
World leaders gathered in Geneva to discuss concrete measures to tackle climate change.
reduce + emissions
The factory has pledged to reduce its emissions by 50% before 2030.
phase out + fossil fuels
Several European nations have agreed to phase out coal-fired power plants by 2030.
preserve + biodiversity
Protected national parks play a vital role in preserving biodiversity.
adopt + sustainable practices
More businesses are under pressure to adopt sustainable practices across their operations.
transition to + renewable energy
The government has committed to transitioning to renewable energy sources within the next decade.
raise + awareness
Documentaries like this one help raise awareness about the scale of the environmental crisis.
Adjective + Noun Collocations
devastating + impact
Climate change is having a devastating impact on polar ecosystems.
irreversible + damage
Scientists warn that continued deforestation may cause irreversible damage to the world's climate systems.
pressing + issue
Environmental degradation is one of the most pressing issues of our time.
viable + alternative
Solar energy is now a commercially viable alternative to coal in many parts of the world.
Formal Expressions Often Used in Academic or Policy Contexts
in the face of + noun phrase
In the face of mounting evidence, it is no longer possible to deny the reality of climate change.
at the expense of + noun phrase
Economic growth should not come at the expense of environmental sustainability.
hold to account
Civil society organisations are playing an important role in holding governments to account for their climate commitments.
on an unprecedented scale
The wildfires of 2023 destroyed habitats on an unprecedented scale.
Important Differences & Confusing Words
Mitigation vs Adaptation
These two terms are both central to climate policy but are frequently confused.
Mitigation refers to actions that reduce or prevent the causes of climate change — primarily by cutting greenhouse gas emissions. Think: stopping the problem from getting worse.
Adaptation refers to adjusting to the effects of climate change that are already happening or are inevitable. Think: learning to live with the consequences.
- Building more offshore wind farms is a mitigation measure.
- Constructing flood barriers along a coastline is an adaptation measure.
Climate Change vs Global Warming
Global warming refers specifically to the rise in Earth's average temperature. It is a single, measurable phenomenon.
Climate change is a broader term covering all the long-term changes in weather patterns, including not only warming but also shifts in rainfall, more intense storms, and changing seasons. Scientists tend to prefer climate change as it captures the full picture.
- ✅ Use global warming when discussing temperature increases specifically.
- ✅ Use climate change when referring to the wider set of environmental shifts.
Eco-friendly vs Sustainable vs Green
These three words are often used interchangeably in everyday English, but they have slightly different nuances:
Eco-friendly tends to describe products or choices that cause minimal direct harm to the environment (e.g. eco-friendly packaging, eco-friendly cleaning products).
Sustainable has a broader meaning: it refers to something that can be maintained long-term without depleting resources or causing environmental damage. It is commonly used in formal, academic, and policy contexts (e.g. sustainable development, sustainable agriculture).
Green is an informal, general term used to describe anything that is environmentally positive. It is common in marketing, journalism, and casual conversation (e.g. green technology, green credentials, going green).
Carbon Neutral vs Net Zero
Both terms describe a balance between emissions produced and emissions removed, but they differ in scope:
Carbon neutral typically refers to balancing carbon dioxide (CO₂) emissions specifically, often through offsetting. It is frequently used at the company or product level.
Net zero is a more ambitious and comprehensive target that covers all greenhouse gases, not just CO₂, and generally implies actual emissions reductions rather than simply buying offsets. It is often used in national and international policy contexts.
- The airline aims to be carbon neutral by 2035 through carbon offsetting schemes.
- The UK government has committed to achieving net zero greenhouse gas emissions by 2050.
Common Mistakes
❌ We need to do something about the environment pollution.
✅ Environmental pollution — We need to do something about environmental pollution.
Note: "environment" is a noun; the adjective form "environmental" is needed to modify another noun.
❌ The government must make something to reduce the emissions.
✅ take action / take steps to reduce emissions — The government must take concrete steps to reduce emissions.
Note: In English we "take action" or "take steps," not "make something."
❌ Deforestation is a very big problem for the nature.
✅ for the environment / for nature (no article) — Deforestation is a serious problem for the environment.
Note: "Nature" used in a general sense does not take the definite article in English.
❌ We should use more sustainable energies.
✅ renewable energy sources / forms of sustainable energy — We should invest in more renewable energy sources.
Note: "Energy" in this context is usually uncountable. We do not typically say "energies."
❌ Climate change is effecting communities all over the world.
✅ affecting — Climate change is affecting communities all over the world.
Note: "affect" (verb) means to have an impact on; "effect" (noun) means a result or outcome. This is one of the most common errors at B2 level.
❌ The company is doing greenwashing to attract more customers.
✅ engaging in greenwashing — The company is engaging in greenwashing to attract more customers.
Note: "Greenwashing" collocates with verbs such as "engage in," "accused of," or "practise" — not "do."
❌ We must reduce our carbon feet.
✅ carbon footprint — We must all make efforts to reduce our carbon footprint.
Note: The fixed expression is "carbon footprint" (singular), not a literal translation of the word "foot."
Environment, Climate and Sustainability: Quick Summary & Review
In this lesson, you have explored a wide range of vocabulary related to environment, climate and sustainability at an advanced B2 level. Here is a summary of the key areas covered:
- Environmental threats — climate change, global warming, deforestation, biodiversity loss, drought, sea level rise, and ecosystem destruction.
- Sustainable solutions — renewable energy, carbon neutrality, net zero targets, the circular economy, carbon footprints, and eco-friendly choices.
- Policy and responsibility — mitigation, adaptation, greenwashing, carbon tax, fossil fuel phase-out, climate refugees, and environmental activism.
- Key collocations — tackle climate change, reduce emissions, phase out fossil fuels, transition to renewable energy, raise awareness, and irreversible damage.
- Important distinctions — mitigation vs adaptation, climate change vs global warming, eco-friendly vs sustainable vs green, and carbon neutral vs net zero.
Mastering this vocabulary will allow you to engage confidently in academic essays, professional discussions, and civic debates on one of the defining issues of our time. Remember: precision matters. Choosing the right word — mitigation rather than adaptation, or net zero rather than carbon neutral — signals a sophisticated understanding of the topic.
Now practise environment, climate and sustainability vocabulary in the exercises below.
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