Water scarcity affects more than 40 percent of the world’s population, an alarming figure that is likely to grow as global temperatures rise as a result of climate change. Although 2.1 billion people have gained access to better water and sanitation conditions since 1990, the declining availability of quality drinking water is a major problem that afflicts all continents.
More and more countries are experiencing water stress, and increasing droughts and desertification are already worsening these trends. It is estimated that at least one in four people will be affected by recurring water shortages by 2050.
In order to ensure universal access to safe and affordable drinking water for all by 2030, it is necessary to make adequate investments in infrastructure, provide sanitation facilities and promote hygiene practices.
Ensuring universal safe and affordable drinking water involves reaching more than 800 million people who lack basic services and improving the accessibility and safety of services by more than two billion.
In 2015, 4.5 billion people lacked safely managed sanitation services (with properly disposed or treated excreta) and 2.3 billion lacked even basic sanitation.