This report is published by the International Military Council on Climate and Security (IMCCS) chaired by Tom Middendorp, former Chief of Defence of the Netherlands and Senior Research Associate at the Clingendael Institute. Louise van Schaik, Head of our EU & Global Affairs Unit & Planetary Security Initiative, is a co-author.
The report is written from the vantage point of international military and security experts, providing a global overview of the security risks of a changing climate, and opportunities for addressing them. It recommends “climate-proofing” international security – including infrastructure, institutions and policies, as well as major emissions reductions to avoid significant-to-catastrophic security threats.

While there has been progress over the past decades, with militaries and security institutions increasingly analyzing and incorporating climate change risks into their assessments, plans and policies, the “World Climate and Security Report 2020” shows that the risks are increasingly urgent, and more must be done. This contributed to the report’s “Key Risks and Opportunities” findings.
Risks

Water insecurity a global security risk: Climate change-exacerbated water insecurity is already a significant driver of instability and will pose a significant or higher risk to global security by 2030.
All regions facing increase in climate security risks (not just fragile/poor): Though fragile regions of the world are facing the most severe and catastrophic security consequences of climate change, all regions are facing significant or higher security risks due to the global nature of the risks.

Military institutions are increasingly concerned about climate risks: As reinforced by the 31 nations represented in the International Military Council on Climate and Security (IMCCS), an increasing number of national, regional and international security and military institutions are concerned about, and planning for, climate change risks to military infrastructure, force readiness, military operations, and the broader security environment.

Opportunities

National, regional, and international security institutions and militaries around the world should advance robust climate resilience strategies, plans and investments, especially regarding climate implications for water and food security and their associated effects on stability, conflict and displacement, in their primary mission sets or lines of effort.
The international community should embrace a Responsibility to Prepare and Prevent framework, given unprecedented foresight capabilities regarding the unprecedented risks of climate change. This includes ensuring all levels of government and civil society, including all national, regional and international security institutions, are prepared for the security implications of climate change.

Climate-proof security
We need to climate-proof all our military institutions, infrastructure and policies in order to avoid the worst and potentially unmanageable security risks of climate change, and to manage the unavoidable risks.
More and more militaries are sounding the alarm on climate change
It's not just environmentalists or economists raising the alarm. The security community therefore has a responsibility to prepare for and prevent these threats.

You can find the report in UNCCD online library, check out the second link for security issues and Sub Saharan Africa