We've helped stop the Government's reckless plans to expand Heathrow Airport, setting a precedent on the Paris Agreement of global application.

Banner image by Crispin Hughes


**NEWS – See the recorded appeal on 7/8th Oct 2020 on the Plan B Versus Heathrow expansion case**


Case information

Key documents on our cases. Our UK 2050 carbon target case was unsuccessful in Court, but prompted a Government revision of the target to net zero. In February 2020 we won our case against Heathrow expansion. We're now working with young people to challenge the Government's failure to uphold their right to life in the economic response to COVID-19.

View case info & documents

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Every donation makes a difference. We have no paid staff. We function as a network of volunteers united by our commitment to addressing the greatest challenge facing humanity.


Get involved

Plan B is supporting the emergence of a networked, international movement of legal action to prevent catastrophic climate change. ​If you would like to work with us please get in touch.

How to get involved


Supreme Court hearing starts Wednesday 7 October

The critical Supreme Court hearing on whether Chris Grayling was right to regard the Paris Agreement as “not relevant” to Heathrow expansion will be heard via video conference next...

Plan B files case for Supreme Court

We’ve now filed our response to Heathrow Airport Limited’s appeal to the Supreme Court.   Boris Johnson claims that “we will ensure that we abide by the judgment and...

Is it time to rebel?

Is Extinction Rebellion exaggerating the risks? Is humanity really facing an “existential threat”? Here are some key sources of evidence: https://docs.google.com/document/d/13iVfUySu3Jn7TVyVtZ4R2sCf44nLO_hjEBjy6bbT8E4/edit?usp=sharing