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Climate

The US and UK militaries are leading consumers of fossil fuels and major sources of greenhouse gas emissions. Through their military interventions and global archipelago of overseas bases, they have poisoned air, water and soil across the world for generations.

Both militaries imperil the climate transition in new ways too, consuming resources such as minerals and raw materials that are essential to green industries.

We analyse the full spectrum of climate and ecological impacts of the US and UK war machines.

10 Articles

Transition Security

What are the consequences of militarisation for a warming world? How will Transition Security Project respond to this moment?

Khem Rogaly, Patrick Bigger, Lorah Steichen

Published October 16, 2025

Redirecting Energy Transition Minerals from the Pentagon Fleet to the Public Good

The Pentagon fleet demands a vast amount of energy transition minerals.

Lorah Steichen, Mekedas Belayneh, Matthew Haugen, Patrick Bigger, Lucy Block

Published February 19, 2025

The Climate Crisis and the US War Machine

The Pentagon is the world's largest institutional consumer of fossil fuels.

Patrick Bigger, Adrien Salazar, Zainab Koli, Lorah Steichen

Published February 11, 2025

Climate Justice Demands Ceasefire and Arms Embargo on Israel

Genocide and apartheid are incompatible with climate justice.

Climate & Community Institute

Published August 17, 2024

Less War, Less Warming: A Reparative Approach to US and UK Military Ecological Damages

Report by Patrick Bigger, Nick Pearce, Khem Rogaly, Ketaki Zodgekar

Published November 6, 2023