At last month’s ND-GAIN annual meeting, Brigadier General (USMC RET) Stephen Cheney, the American Security Project’s CEO, laid it on the line. For the military and for the world, climate change risk is real and grows every day. And the military knows from experience that waiting for certainty on future predictions can prove disastrous. Reflecting on climate impacts with national security significance, a panel spelled out five repercussions of a changing climate. Cheney himself laid out four risks:
Sea level rise in Asia will displace millions of people. In Bangladesh alone, more than one million of its 160 million people will need to relocate. Relocations cause tensions that historically have erupted into civil conflict in which the U.S. military has responded..
- Forest fires, such as the one in Russia that elevated wheat prices and perhaps sowed the seeds of the Arab Spring in the Middle East, will put more natural resources at risk, causing scarcity-driven conflicts. (In an earlier post, I noted that the U.S. Defense Department estimates that 6,000 square kilometers of African land for agriculture – roughly the size of the West Bank and Gazawill disappear by 2060 so the bargain over food resources will worsen.)
- Extreme weather events, such as Super Typhoon Haiyan that ravaged the Philippines will require military response for humanitarian aid.
- Arctic ice melt will trigger a tussle over territory, leading to conflict between the nations that claim ownership.
The fifth effect of a changing climate with national security implications was offered by Marcus King, associate professor of George Washington University’s The Elliott School of International Affairs. His was a promising trend – that water scarcity has fostered more incidents of cooperation than conflict. For instance, he mentioned the agreement by Jordan, Israel and the Palestine Authority to rejuvenate the Dead Sea.
He noted that the Pentagon refers to climate change as an instability accelerant, and cited projections from the Intergovernmental Panel on Climate Change and others that by 2030, global demand for water will exceed the water supply by 40 percent. Already, in the tinder box of the Middle East, water trends are alarming. In Syria, 800,000 farmers were forced to move to cities because of a two-year drought and, in Yemeni, aquifers could be depleted by 2020. For Egypt, which relies on neighboring countries for all of its fresh water, conflicts driven by water could erupt as Egypt’s neighbors consider building dams for their energy security.
As Roger-Mark De Souza, director of the Wilson Center of Population, Environment, Security and Social Change foretold, with 1.5 billion, or more than one-in-five, people worldwide living in conflict or post-conflict areas, climate vulnerability will worsen crises.
 Approximately 6,020 square kilometers, The World Bank