More than 800 million people need to travel and queue for at least 30 minutes to access safe supplies. The problem of access is increasingly complicated by climate change, pollution and a growing global population. The worst affected country is Eritrea, where only 19% of the population have basic access to water. It is followed by Papua New Guinea, Uganda, Ethiopia, the Democratic Republic of the Congo and Somalia, all of which have rates of between 37% and 40%. The world still has much work to do to achieve the UN’s sustainable development goal 6, which is to provide safe water and sanitation to everyone by 2030.