Climate, Environment, Security

Programme

Climate, Environment, Security

Geopolitics unfolds on a planet that is now experiencing profound upheavals. The transgression of certain limits that underpin its habitability for human societies foreshadows the onset of shocks, crises and disruptions within the international system, and may lead some actors — including states — to redefine their understanding of the world, as well as their strategies and interests.

Since 2010, the Climate, Environment and Security Programme has examined these interdependencies: while it explores the consequences of political and geopolitical decisions on natural systems, it also seeks to analyse the impacts of climate change and biodiversity loss on human, national and international security.

Grounded in a systemic understanding of climate security issues, the programme’s approach focuses on the analysis of emerging risks, the identification of threats and forward-looking assessment, as well as on the development of operational recommendations designed to support strategic decision-making.

Through research, the publication of policy briefs, the organisation of conferences open to experts and the wider public, and the delivery of seminars, the programme aims to foster reflection geared towards strengthening the resilience of societies and stakeholders (ministries, government agencies, international organisations and companies) in the face of climate change.

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Geopolitical challenges of Earth's system shifts

Geopolitical challenges of Earth's system shifts

Impacts of climate change on defence and national security

Impacts of climate change on defence and national security

Adaptation and resilience of society and politics to systemic risks

Adaptation and resilience of society and politics to systemic risks

Geoengineering and associated security, strategic, and governance challenges

Geoengineering and associated security, strategic, and governance challenges

Geopolitics of agricultural worlds

Geopolitics of agricultural worlds
All publications

The essentials

Climate Diplomacy of the Gulf Monarchies: Leverage and Power Tool

Notes / Defence and Climate Observatory

13 May 2025

Climate Diplomacy of the Gulf Monarchies: Leverage and Power Tool

Éléonore Duffau

Research Fellow, IRIS

Mathilde Jourde

Research Fellow, Head of the Climate, Environment, Security Programme, IRIS

Martin Collet

Research Assistant, IRIS

Maxence Michelet

Research Assistant, IRIS

Security Challenges of Water Stress in Southern Europe

Notes / Defence and Climate Observatory

6 November 2024

Security Challenges of Water Stress in Southern Europe

Éléonore Duffau

Research Fellow, IRIS

Mathilde Jourde

Research Fellow, Head of the Climate, Environment, Security Programme, IRIS

Martin Collet

Research Assistant in the IRIS’s Climate, Energy & Security program

Solar Geoengineering: Geostrategic and Defence issues

Notes / Defence and Climate Observatory

29 November 2023

Solar Geoengineering: Geostrategic and Defence issues

Marine de Guglielmo Weber

Scientific Director of the Observatory

Sofia Kabbej

Associate Research Fellow, IRIS

Laura Hebbel Boutang

Assistante de recherche à l’IRIS

Climate change and hotspots of conflict around the world

Notes / Defence and Climate Observatory

14 June 2023

Climate change and hotspots of conflict around the world

Marine de Guglielmo Weber

Scientific Director of the Observatory

Yente Thienpont

Assistante de Recherche à l’IRIS

Julia Tasse

Senior Research Fellow, Head of the Ocean Programme, IRIS

Events

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The research team

See the entire research team of IRIS

They contribute to the programme

  • Marine de Guglielmo Weber

    Marine de Guglielmo Weber

    Scientific Director of the Defence and Climate Observatory, researcher at IRSEM

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