
Earth is a blue watery planet. 70{154653b9ea5f83bbbf00f55de12e21cba2da5b4b158a426ee0e27ae0c1b44117} of its surface is covered by oceans of salt water, some of which are extremely deep. These oceans contain about 97{154653b9ea5f83bbbf00f55de12e21cba2da5b4b158a426ee0e27ae0c1b44117} of Earth’s water. Another 2{154653b9ea5f83bbbf00f55de12e21cba2da5b4b158a426ee0e27ae0c1b44117} is locked up in snow, ice caps and glaciers.
That leaves just 1{154653b9ea5f83bbbf00f55de12e21cba2da5b4b158a426ee0e27ae0c1b44117} of Earth’s surface water in inland seas, lakes, rivers and dams. We have plenty of water, but not much to drink.