A new report by the United Nations warns that a quarter of humanity lacks access to safe drinking water, and nearly half of the global population has no access to basic sanitation. Unless action is taken, 60% of the world’s population could face water supply issues by 2050. At the U.N. Water Conference in New York last week, U.N. Secretary-General António Guterres addressed the report’s findings and warned of the potential link between water scarcity and war. From Abuja, Nigeria, we speak to Boluwaji Onabolu, president of the Network of Female Professionals in WASH in Nigeria, which focuses on water, sanitation, hygiene and public health. We’re also joined from Phoenix, Arizona, by Mohammed Mahmoud, the director of the Climate and Water Program at the Middle East Institute.