All humans need water to survive. It is essential for drinking, growing crops, and cooking—as well as for manufacturing clothing and homes.
But fresh water is a limited resource. While it may be plentiful in some regions, it’s scarce in others. Even when it’s available, it isn’t always safe to drink. Often, local water sources are polluted with chemicals or contaminated with bacteria or parasites.
The good news: Providing a community with a safe source of water can be as simple as building a well or installing a water-purification system. Between 2005 and 2015, international efforts helped about 1.3 billion people access safe drinking water, the United Nations reports.
Still, it will take a lot more work to solve the global water crisis. In recent decades, the world population has exploded, increasing demand for water. Water use has also risen sharply worldwide. Meanwhile, climate change has shifted when and where precipitation falls around the globe, causing droughts to become much more frequent and severe. The World Health Organization predicts that by 2025, half of the world’s population will live in regions without enough water to meet human needs.
To ensure that all people have access to safe water, governments, businesses, and individuals will have to work together in the coming years to better conserve, manage, and distribute the water we have.