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Vocabulary/Environment & Climate
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Environment & Climate

Essential vocabulary for IELTS essays on climate change, pollution, conservation, and sustainability.

10Words
3Example levels each
IELTSOptimised
🌱

Foundation

Simple, clear usage

📈

Intermediate

Academic context

Band 9

Sophisticated, Band 9 style

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10 words

sustainabilitynoun

The ability to be maintained at a certain rate or level without depleting natural resources or causing long-term damage.

🌱 Foundation Example

"We need to think about sustainability when we use natural resources."

Common collocations:

environmental sustainabilitylong-term sustainabilitypromote sustainabilitysustainability goals
emissionsnoun (plural)

Gases and pollutants, particularly greenhouse gases, released into the atmosphere as a result of industrial processes, transportation, and energy generation.

🌱 Foundation Example

"Cars produce emissions that are bad for the air."

Common collocations:

carbon emissionsreduce emissionsemissions targetsgreenhouse gas emissions
deforestationnoun

The large-scale removal of forests, typically to clear land for agriculture, urban development, or commercial logging.

🌱 Foundation Example

"Deforestation destroys the homes of many animals."

Common collocations:

tropical deforestationcombat deforestationdeforestation ratesillegal deforestation
biodiversitynoun

The variety of plant and animal life in the world or in a particular habitat, considered in terms of its contribution to ecosystem health.

🌱 Foundation Example

"The rainforest has a lot of biodiversity because many different animals live there."

Common collocations:

protect biodiversityloss of biodiversitymarine biodiversitybiodiversity hotspot
renewable energynoun phrase

Energy from naturally replenishing sources such as solar, wind, tidal, and geothermal power that do not deplete finite reserves.

🌱 Foundation Example

"Solar panels use renewable energy from the sun to make electricity."

Common collocations:

invest in renewable energytransition to renewable energyrenewable energy sourcesrenewable energy capacity
pollutionnoun

The introduction of harmful substances or contaminants into the natural environment, causing adverse changes.

🌱 Foundation Example

"Factories cause a lot of air pollution."

Common collocations:

air pollutionwater pollutionplastic pollutionreduce pollutionpollution levels
conservationnoun

The protection, preservation, and sustainable management of the natural environment and wildlife.

🌱 Foundation Example

"Conservation means protecting animals and nature."

Common collocations:

wildlife conservationconservation effortsconservation policymarine conservation
carbon footprintnoun phrase

The total amount of greenhouse gases generated by an individual's, organisation's, or product's activities, expressed in equivalent tonnes of carbon dioxide.

🌱 Foundation Example

"Driving a car makes your carbon footprint bigger."

Common collocations:

reduce carbon footprintcarbon footprint calculatorindividual carbon footprint
ecologicaladjective

Relating to the relationships between organisms and their environment, or to the long-term health of natural ecosystems.

🌱 Foundation Example

"Plastic bags are very bad for the ecological health of the oceans."

Common collocations:

ecological damageecological balanceecological footprintecological crisis
fossil fuelsnoun phrase

Natural fuels such as coal, oil, and natural gas, formed from the remains of ancient organisms and combusted to generate energy — releasing stored carbon dioxide.

🌱 Foundation Example

"Oil and coal are fossil fuels that cause pollution when they are burned."

Common collocations:

burn fossil fuelsdependence on fossil fuelsfossil fuel subsidiesphasing out fossil fuels

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