PARLIAMENTARY WRITTEN QUESTION
(7 September 2026)

To ask the Secretary of State for Defence, whether the Ministry of Defence's climate change and sustainability strategy has been updated to incorporate the findings of the national security assessment on global biodiversity loss, ecosystem collapse and national security.

Asked by:
James MacCleary (Liberal Democrat)

The MOD's Climate Change and Sustainability Strategic Approach (CCSSA) published in 2021 established a framework for integrating environmental risks into defence planning, infrastructure and operations. In August 2025, the Department endorsed a new internal Energy and Environment Strategic Direction which builds on progress achieved under the CCSSA and which supports policy development in relation to national security assessments of climate change and biodiversity loss and contributions to cross-government initiatives such as the UK's National Adaptation Programme.

These steps support Defence’s move towards warfighting readiness, increased productivity, and responsible environmental action.

Answered by:
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