These silly footprint measures (carbon footprint, water footprint) are finally beginning to wear.
There's lots of stuff that goes into making stuff. Water isn't the only thing that goes into foods A, B, C. Petroleum isn't the only thing that goes into non-foods D, E, F.
Too bad there isn't a way to sum up the stuff that goes into making stuff.
Oh, wait. There is. It's called "money". The total cost of making something is the sum of all that.
Its usefulness breaks down when some entity with guns at its disposal (government, usually) interferes with the process, and makes something artificially expensive or worse, artificially inexpensive. You know, like water in California.
Then you find activities as goofy as people raising rice in a desert. Such as people raising rice in a desert.
But it gets people re-elected, and that's what's important.