The goal of the 4Liters Challenge is to "give participants and their social communities new insight into the value of water and the hardships of life without it," by asking people to survive on 4 liters of water for an entire day.
Still, Americans use hundreds of gallons of water every day without thinking. (Especially in drought-stricken California.) I think that if we can learn to love our water, it just might save our lives. So I decided to give a talk about it.