In Jordan—one of the driest, most water poor countries in the world—population growth is straining the country’s aging infrastructure and limited water resources. As the Jordan country director for the Millennium Challenge Corporation (MCC), I’ve met urban residents and business owners who have only received water from the city utility once every two weeks, relying on storage tanks to fill the gaps. I’ve spoken with water utility managers who could no longer keep up with urgent repairs, leading to bursting water pipes and sewage overflowing into streets. And farmers in the Jordan Valley have told me that each year their wells have grown drier, and they feared the next generation would be forced to give up farming olives, tomatoes, grapes, and strawberries.

Scientists agree that many countries in tropical, subtropical, and arid regions should expect changes to water availability and supply from climate change. The U.S. intelligence community has likewise warned of water-driven challenges not only for countries directly affected by water changes, but indirectly to various U.S. national security interests. Perhaps not surprisingly then, the popular literature has been quite clear about prophesizing wars over water.

In a world rapidly churning out unpredictable political shocks, intelligence analysts occasionally need to clear their heads of the daily barrage of newsworthy events and instead work with simple theories that discern the direction and speed of trends and help predict their outcomes. Political demography, the study of population age structures and their relationships to political trends and events, has helped some analysts predict geopolitical changes in a world that, from time to time, appears utterly chaotic.

“Water is the frontline of climate change. It’s what every report that you see identifies as the sort of first and foremost effect we see from a climate changing world,” said Sherri Goodman, a public policy fellow at the Wilson Center and formerly of CNA and the U.S. Department of Defense, on October 19.

It was some point in May last year, shortly after ISIS surged into the city of Ramadi, and I was working on a story about Iraq’s fast-disappearing Mesopotamian Marshes. Keen to fact-check a few statistics with the Ministry of Water Resources and to hear the government line on the wetlands’ struggles, I dialed its Baghdad offices. After being passed from official to official like a hot potato, a young employee, Hussein, finally gave it to me straight. “No, no, we don’t have this sort of information,” he said, clearly impatient to get off the phone. “There are much more important things in Iraq right now.”

Ten miles south of Tel Aviv, I stand on a catwalk over two concrete reservoirs the size of football fields and watch water pour into them from a massive pipe emerging from the sand. The pipe is so large I could walk through it standing upright, were it not full of Mediterranean seawater pumped from an intake a mile offshore.

The International Expert Forum (IEF) is a series of seminars meant to facilitate dialogue between experts and policymakers on peace and security. Meeting in Stockholm this past May, the forum explored the connections between environmental issues, peacebuilding, and conflict while considering how environmental governance can aid in peacebuilding. The summary brief produced after the forum provides a useful snapshot of a fast-changing field of study.