Transcript:

So we don't realize it, but the entire civilization on this planet is sustained by this massively big loop made by the water molecules. So it evaporates from the ocean, and then it rains, and it accumulates in lakes high up in the mountains. Sometimes, it's frozen as glaciers way up there. And then those lakes merge into rivers, and eventually, the river meets the ocean. The whole loop is completed.

And this song is a fantastic depiction of this massively giant loop that is sustained. Let's listen.

(Music)