Although the Millennium Development Goal (MDG) of halving the number of people who did not have access to clean water by 2015, was reached five years ahead of schedule in 2010, there are still 783 million people who rely on unimproved water sources. In 2010 the United Nations declared access to clean water a fundamental human right, integral to the achievement of other rights. This made it enforceable and justifiable to permit governments to ensure their populations access to clean water. Though access to water has improved for some, it continues to be especially difficult for women and children. Women and girls bear most of the burden for accessing water and supplying it to their households.