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Tyre Extinguishers

Tyre Extinguishers is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tyre Extinguishers rather than just read about it. In short: Tyre Extinguishers is an international climate direct action group which deflates the tyres on sport utility vehicles (SUVs). The group describes driving an SUV as "among the worst single actions that one can take in terms of its climate impacts and its adverse effects on public safety", with SUVs having a disproportionately large impact on the climate crisis relative to other vehicles, worsening air pollution and b…

Tyre Extinguishers — main illustration
Tyre Extinguishers — illustration

Key takeaways

  • Tyre Extinguishers belongs to earth science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Tyre Extinguishers to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Tyre Extinguishers from memory before moving on to harder problems.

Reference excerpt

Tyre Extinguishers is an international climate direct action group which deflates the tyres on sport utility vehicles (SUVs). The group describes driving an SUV as "among the worst single actions that one can take in terms of its climate impacts and its adverse effects on public safety", with SUVs having a disproportionately large impact on the climate crisis relative to other vehicles, worsening air pollution and being more likely to kill pedestrians than smaller sedan cars. The group has called for a ban on SUVs in cities, and has said that they "want to make it impossible to own a huge polluting 4x4 in the world’s urban areas". The group suggests inserting a piece of gravel, lentil or other small object to depress the pin on the valve cap of an SUV's tyre, so that the tyre deflates slowly over time. The activists leave leaflets under the vehicles' windscreen wipers "so that the owner is aware that the car is unusable and gets an explanation as to why this has been done".

Activities Between 7 March 2022 and July 2022, the group claimed to have deflated over 5000 tyres of SUVs worldwide, including areas of London, Cambridge, Brighton and Hove, Bristol, Edinburgh, Liverpool and Sheffield, the Swiss city of Zurich, the German cities of Essen and Dortmund, the Swedish city Gothenburg, in the New Zealand cities of Auckland, Christchurch and Wellington, and in Los Angeles. Several Tyre Extinguishers splinter groups formed in Scottish cities including Dundee (The Dundeeflators) and Glasgow (The Deflationists). In July 2022, the group's further actions in the United States took place in New York City, Chicago, Scranton, Pennsylvania and the San Francisco Bay Area. The group claimed its first actions in Canada (Waterloo, Ontario) and France (Paris) the same month. On one night in September 2022, the group deflated tyres on over 600 SUVs in the UK, France, Germany, Switzerland, the Netherlands, Norway, Denmark, the Czech Republic and Canada. The group claimed these were its debut actions in Denmark, Norway and the Czech Republic. In October 2022, the organisation claimed to have reached its initial target of 10,000 SUVs deflated since March 2022, with the actions taking place across 15 countries. The group described Australia as its "next big target" in May 2023. In August 2023 Tyre Extinguishers claimed responsibility for an "independent cell" of their group that had used power drills to puncture the tyres of more than 60 SUVs at a car dealership in Exeter, England. The group described the act as a "necessary escalation", and a retaliation to an incident the previous month where a Land Rover had broken through a fence and killed two schoolchildren. In October 2023, the group announced its first action in Riga, Latvia, claiming this was the 20th country with active Tyre Extinguisher groups.

Organisation The name "Tyre Extinguishers" began appearing in 2021, but the group's actions did not begin until March 2022. In 2007, a Swedish group called "The Indians of the Asphalt Jungle" had embraced the same tactic, deflating over 1,500 SUVs (according to its own numbers) and, as reported by Vice, "helping to send the usually relentless growth of domestic SUV sales into a rare reverse". The group was described by Aston University academics Oscar Berglund and Graeme Hayes as a "pop-up climate movement", given the group's emphasis on individuals or small groups taking action wherever they are using the materials on the Tyre Extinguishers website, rather than a more centralised structure. Lund University professor Andreas Malm (whose book How to Blow Up a Pipeline argues in favour of the sabotage of fossil fuel infrastructure as a form of environmental activism, and who the Tyre Extinguishers have cited as an inspiration) called the group's actions a form of "extremely peaceful and gentle sabotage". Malm continued, "anyone can deflate an SUV: it is virtually child's play. It requires no formal organization, no leadership, no funds, no implements other than bits of gravel or beans or green lentils. Given the infinitely replicable nature of the action - sabotage as meme - its potential for making SUV ownership less convenient and attractive could not be discounted". Separate groups have begun to use similar tactics, such as a group called Reclaim Our Communities in Bristol, UK, which deflated tyres on more than 100 SUVs and 4x4s in the city in October 2023.

Legality The group claims to have faced no legal issues, and has said that it understood police forces in the United Kingdom to be "divided" on whether it was a crime to let the air out of a tyre. Journalists have described the actions as criminal and authorities in certain regions have encouraged witnesses to come forward with information. In the U.S., Car and Driver magazine noted "State laws against 'tampering with a motor vehicle' are likely to be enforceable, but of course, first the person would have to be caught in the act of letting the air out of the tires". In Singapore in 2025, a man was found guilty of committing mischief after deflating the tyres of seven vehicles in a car park in Woodlands. He was fined S$3,000 (US$2,300) after voluntarily compensating the victims for damages related to re-inflating the tyres and writing a letter of apology.

References

Locations

External links Official website

Illustrations

Tyre Extinguishers illustration

Worked examples

Example 1 — a first encounter with Tyre Extinguishers

Start with the simplest possible case. Write down what Tyre Extinguishers claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tyre Extinguishers before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tyre Extinguishers ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tyre Extinguishers

In research
Tyre Extinguishers appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Tyre Extinguishers in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Tyre Extinguishers is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2022 establishments in the United Kingdom, 2022 protests, Car-free movement, so understanding it makes those chapters shorter.
In everyday life
Look for Tyre Extinguishers outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Tyre Extinguishers in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Tyre Extinguishers means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Tyre Extinguishers out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tyre Extinguishers in simple terms?

Tyre Extinguishers is an international climate direct action group which deflates the tyres on sport utility vehicles (SUVs). The group describes driving an SUV as "among the worst single actions that one can take in terms of its climate impacts and its adverse effects on public safety", with SUVs…

Why does Tyre Extinguishers matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tyre Extinguishers?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tyre Extinguishers.

Tags

  • 2022 establishments in the United Kingdom
  • 2022 protests
  • Car-free movement
  • Climate change organizations
  • Climate change protests
  • Direct action
  • Environmental organisations based in the United Kingdom
  • Environmental protests in the United Kingdom
  • Radical environmentalism

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