Military needs to plan for impact of Climate Change: Briefing for Defence Sector highlights threats to peace and security


The Hague, 5 June 2014 

Whether risks emerge from human aggression or other factors, the core mission of national military forces is to provide protection from threats to security. Climate Change is multiplying threats to peace and stability, forcing military leaders everywhere to adapt strategic planning. 

A briefing published today summarises security-related findings of the Intergovernmental Panel on Climate Change (IPCC) for the leaders of defence communities and associated policy makers. The briefing makes clear that the impacts of climate change will affect all parts of the world, and outlines potential flashpoints of conflict and threats that could require large-scale military response. 

The briefing is a joint publication of the Global Military Advisory Council on Climate Change (GMACCC), the Institute for Environmental Security (IES) and the University of Cambridge’s Institute for Sustainability leadership (CISL) with the support of the European Climate Foundation (ECF). 

The aim is to provide an accessible and concise summary of key findings of the IPCC’s Fifth Assessment Report (AR5) to be readily used by senior leaders of defence organisations and policy makers to better adapt planning to reduce emerging climate-change-related risks to human security, improve disaster response and increase political stability of fragile states. This publication was born of the belief that the defence sector could make more use of the AR5, which is long and highly technical, if it were distilled into an accurate, accessible, relevant and readable summary. 

   Examples of climate change impacts                Possible responses by the military 

  • Increase in drought and inland flooding       • Humanitarian ops, sanitation/medical support 

  • Rising and extreme temperatures                  • Moving populations, water and waste treatment 

  • Geopolitical concerns, mass migration          • Peacekeeping, border protection, refugee mgt. 

  • Sea-Level rise and extreme weather events   •  Base relocations and disaster response 

Key points of the briefing include: 

Climate change poses an increasing threat to peace and security in the world. Its impacts can increase involuntary migration, and reduce the ability of states to provide security. 

  • Climate change acts as a ‘threat multiplier’, and can indirectly increase risks of violent conflict, especially in countries with weak governments and/or with existing conflict. 

  • Societies’ responses to climate impacts may exceed capacities for peaceful resolution: populations displaced by extreme weather or sea-level rise, the spread of infectious disease, and lack of food and water. 

  • Climate change will bring new challenges to states’ ability to share resources and provide human security. Climate change will increasingly shape national security policies: changing resource availability may increase rivalry between states, and raise border disputes. 

  • Military forces will be directly affected by climate change. Sea-level rise and other climate impacts will directly affect military facilities. As major fossil fuel users, military forces may have to reduce their greenhouse gas (GHG) emissions. The need for military-led humanitarian support missions may increase. 

Comments on the briefing: 

 “This briefing pulls together the disparate parts of the IPCC’s latest report relating to defence into a clear and easy to understand document. It provides vital information on how the defence sector will need to respond to this global challenge.” – MAJOR GENERAL (RET) JOSEPH G SINGH, GUYANA 

“This report is a very timely reminder to national and international leaders: the impact of a changing climate is not just an environmental issue, it is already accelerating instability in vulnerable areas of the world, which in turn poses a risk to geo-political stability, a pre requisite for sustained economic growth and well-being for all. There is no security solution to climate change, just greater risk of instability if we do not act!” – REAR ADMIRAL (RET) NEIL MORISETTI, RN, UNITED KINGDOM 

“Climate change adds new force to many of the driving factors behind conflict and insecurity in the world today. It threatens to increase vulnerabilities and tensions in parts of the world that are already insecure. This briefing summarises the latest assessment by the IPCC of this complex relationship. It should be required reading for anyone interested in national security planning.” – DR EMILY SHUCKBURGH, HEAD OF OPEN OCEANS, BRITISH ANTARCTIC SURVEY / MEMBER OF THE UNIVERSITY OF CAMBRIDGE CENTRE FOR CLIMATE SCIENCE 

>>> Download the briefing: Climate Change: Implications for Defense 

>>> Download the briefing poster

The report is one of a series of thirteen briefings, based upon The Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC). The information of the IPCC has been made public, and this briefing helps ensure that its value is delivered to leaders responsible for overall security.