Highlighting the connections between climate change and human security, this book elucidates what might happen when a mere 10-degree drop in average temperature results in a sudden inability to produce enough food, when rapidly advancing desertification produces water scarcities where none existed before, and when newly frozen landscapes lead to more power plants for energy, resulting in increased air pollution. The destabilizing effects of these possibilities create many potential challenges for U.S. national security in a globalized world in which we may have to intervene militarily to...