Research for Climate

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July 1, 2010

Climate change poses challenges to societies and governments that go far beyond the alteration of our environment. The physical impacts of climate change, including gradual but steady increases in temperature, changing precipitation patterns, the reduction of glaciers and Arctic ice, rising sea levels and changes in coastlines, and more intense and frequent extreme weather events, will affect human lives in numerous ways. While climate change does not by itself create new security threats, it does act as a threat multiplier. It exacerbates existing political weaknesses and social tensions in countries around the world, and creates demands for state services and assistance—including security—which at times may exceed the capacity of governments to respond. In this sense, the growing likelihood of events such as mass migrations, crop failures, economic shocks, public riots and violence, floods and other natural disasters, widespread epidemics, and competition for resources pose serious challenges for governments and security forces worldwide.

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June 23, 2010

Climate change has the potential, even likelihood, to fundamentally transform our understanding of homeland security, public safety, and especially our capacities and capabilities to adapt to emergencies. In this report, the focus is on how climate change will interact with migration, both as cause of large-scale population displacements and, in turn, as consequence of shifting settlement patterns.

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June 17, 2010

Increases in the concentrations of atmospheric greenhouse gases from activities such as burning fossil fuels and deforestation have caused a measurable increase in global temperatures. As greenhouse gas concentrations continue to increase, further changes in the Earth’s climate are expected. These changes may impact the location, frequency, and occurrence of natural hazards such as tropical cyclones, wildfires, floods, and winter storms. Thus, the historical data that are typically the basis of hazard identification and risk assessment may not accurately forecast future events. Consequently, we need to begin to evaluate and better understand how climate change could affect the identification and selection of disaster mitigation strategies, the types of preparedness activities that jurisdictions undertake, the execution of response operations, and the implementation of long-term recovery strategies

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April 1, 2007

In 2006 CNA convened a Military Advisory Board (MAB) of eleven retired three-star and four-star admirals and generals to assess the impact of global climate change on key matters of national security, and to lay the groundwork for mounting responses to the threats found.

In April 2007, CNA released the MAB's landmark report, National Security and the Threat of Climate Change, that articulates the concept of climate change acting as a “threat multiplier” for instability in some of the most volatile regions of the world and identifies key challenges that must be planned for now if they are to be met effectively in the future.

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