Geoff Dabelko is Director of the Environmental Change and Security Program at the Woodrow Wilson Center. In this presentation, Dabelko describes how water quality and quantity are declining in many parts of the world, posing acute problems for communities and governments. This crisis, along with high levels of interdependence on shared water resources, has led many members of the news media and some politicians to warn of imminent "water wars" between countries. Yet such wars between nations over water have never occurred in modern history and are unlikely to take place in the future. Although tensions over water resources often lead countries to trade hostile words, such exchanges rarely escalate into full-fledged conflicts.