Drinking water from the sea. 

Water is essential to our survival, and it covers much of the earth. The only pesky issue is that most of that water is saltwater. Naturally, desalinization is a big deal. Unfortunately it’s still very expensive process, so water scarcity continues to be an issue in much of the world. A new graphene-based technology might enable rapid production of membranes to filter salt out of seawater. learn more