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Globally, there is no lack of security threats. Many of them demand priority engagement and there can never be adequate resources to address all threats. In this context, climate is just another aspect of global security and the Arctic just another region. In light of physical and budgetary constraints, new security needs must be integrated and prioritized with existing ones. This discussion approaches the security impacts of climate from that perspective, starting with the broad security picture and establishing how climate may affect it. This method provides a different view from one that starts with climate and projects it, in isolation, as the source of a hypothetical security burden.1 That said, the Arctic does appear to present high-priority security challenges.Uncertainty in the timing of an ice-free Arctic affects how quickly it will become a security priority. Uncertainty in the emergent extreme and variable weather conditions will determine the difficulty (cost) of maintaining adequate security (order) in the area. The resolution of sovereignty boundaries affects the ability to enforce security measures, and the U.S. will most probably need a military presence to back-up negotiated sovereignty agreements. Without additional global warming, technology already allows the Arctic to become a strategic link in the global supply chain, possibly with northern Russia as its main hub. Additionally, the multinational corporations reaping the economic bounty may affect security tensions more than nation-states themselves. Countries will depend ever more heavily on the global supply chains. China has particular needs to protect its trade flows. In matters of security, nation-state and multinational-corporate interests will become heavily intertwined.

As climate change and human migration accelerate globally, decision-makers are seeking tools that can deepen their understanding of the complex nexus between climate change and human migration. These tools can help to identify populations under pressure to migrate, and to explore proactive policy options and adaptive measures. Given the complexity of factors influencing migration, this article presents a system dynamics-based model that couples migration decision making and behavior with the interacting dynamics of economy, labor, population, violence, governance, water, food, and disease. The regional model is applied here to the test case of migration within and beyond Mali. The study explores potential systems impacts of a range of proactive policy solutions and shows that improving the effectiveness of governance and increasing foreign aid to urban areas have the highest potential of those investigated to reduce the necessity to migrate in the face of climate change.

Emerging from a protected, regulated environment, utilities use gaming and simulation models to learn about the dynamics of deregulation. UTILITIES 21, an all-fuel, fully integrated energy model, details actual data and area dynamics. Proven both reliable and valid, the results generated from the UTILITIES 21 gaming model predicted recent energy crises as being caused by implementation of conventional decision making rather than employment of new knowledge learned from the gaming sessions. Gaming facilitators realize that learning new knowledge is insufficient. They must also teach utilities how to implement that knowledge.

Although scientists disagree about the rate at which Arctic ice is melting, climate change will greatly alter the northern latitudes in coming decades if greenhouse gas emissions are not curtailed. Many of the expected changes will be negative; already, permafrost is melting in Siberia, and apartments and factories are sinking into quagmires. The melting of Arctic ice, however, will also open sea-lanes to shipping and allow access to enormous oil and gas reserves beneath the Arctic Ocean. The prospect of increased Arctic commerce brings with it competition among countries and companies for control of the areaÕs riches, and international competition always carries the possibility of conflict. Three authors, all experts in national security and the Arctic, explore the military, diplomatic, environmental, and economic outlook for the Arctic in 2030: from Russia, Yury Morozov (2012); from Canada, Rob Huebert (2012); and from the United States, George Backus.