Water economics for beginners

From David Zetland (Aguanomics) comes this note…

Marginal Revolution University [free, online] has released 14 lessons (2-7 min, each) on water economics as part of its development economics unit. They give a decent introduction to several issues. I am going to contribute a few lessons.

The series has a point of view about an economic approach to the issues, but offers a beginning for those new to thinking about the issues.