During the 2016 campaign President Trump stated that clean water would be a top priority of his administration, telling ScienceDebate.org “it may be the most important issue we face as a nation for the next generation.” Now is the time to make good on that commitment.

In 2004 I was honored to be interviewed for The Lancet medical journal’s “Lifeline” series. I had just come away from a disastrous short tenure as the interim minister of health in Iraq following the 2003 war. I had support from former Secretary of State Colin Powell to rapidly mitigate and recover the war-related destruction of essential public health infrastructure and protections required as occupiers under Articles 55 and 56 of the Geneva Conventions that follow every war.

Do you experience information overload? Feel like there’s always another crisis to worry about? Sense a kind of chaos? Well, you may be a citizen of the early 21^st century.

Where violent conflict displaces people and disrupts societies, maternal and child health suffers, and such instability is widespread today. According to the UN Refugee Agency, there are 65.3 million forcibly displaced people, 21.3 million refugees, and 10 million stateless people over the world. In addition, more than 65 million people who are not displaced are affected by conflict.

As Syria has collapsed, spasming into civil war over the last five years, the effects have rippled far beyond its borders. Most notably, a surge of refugees added to already swelling ranks of people fleeing instability in Afghanistan, Iraq, Pakistan, and sub-Saharan Africa, leading to the highest number of displaced people since the Second World War. At the same time, scientists have noted record-breaking temperatures, a melting Arctic, extreme droughts, and other signs of climate change. For some, an obvious question is: what does one have to do with the other?

Record levels of displacement and accelerating climate change have prompted many to wonder if the world is headed toward a more violent future. The nexus of climate change, migration, and conflict is posing fundamental challenges to societies. But not always in the ways you might think. In a new report prepared for the U.S. Agency of International Development, Lauren Herzer Risi and I present a small guide to this controversial and consequential nexus of global trends.

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.”

The United Nations Environment Program is highlighting the battle by Iraqi forces to reclaim Mosul from the Islamic State as the latest instance in the complex but very real linkage between military conflicts around the world and extreme environmental degradation.