According to the United Nations, water scarcity remains a real problem for 40% of the world’s population, and this is expected to get worse. Despite considerable progress in providing 2.6 billion people with improved water sources since 1990, approximately 663 million people still have no access to clean water. Despite there being sufficient fresh water on our planet, millions of people die every year from diseases caused by poor water quality. By 2050, at least one in four people is likely to live in a country affected by chronic or recurring shortages of fresh water.