This question is posed by Mission Blue as part of the Clean Water Tour launching this weekend in Austin, Texas in conjunction with many partners. In this post, there are links to answers to that question, but with something that is as vital to our existence as water, there are many answers.
One of the most compelling and beautiful cases for the importance of water is found in a short film written and narrated by Mission Blue’s Dr. Sylvia Earle and produced by National Geographic.  This film is a superb overview of the importance of water and the ubiquity of it in our world.
The film is also the introduction to our Explore the Ocean layer in Google Earth. You can search thousands of stories from the Google Earth on this website from the menu tab above.…