THE WORLD'S MOST ABUNDANT RESOURCE IS ALSO THE SCARCEST.
Water. It's the fundamental building block of life. Not only does it make up most of the human form—up to 60 percent of an adult human body—it also covers 71 percent of the Earth’s surface. Every living organism on our planet depends on water for life. But even though it's the most plentiful resource on Earth, only a tiny amount—less than 1 percent—is usable.