Don't Let It Slip Away Water. It’s the vital element for all life on Earth, and the most precious. Everyone knows that Earth is covered by 75% water, but less than 1% can be used for drinking. For the sake of the environment and our survival, we must learn to use this resource with care. The future’s in our own hands because we as human beings are the only ones truly capable of change. If we continue to misuse what little water we have, it’ll be no different than letting it slip through our fingers never to return.