[zer00eyz]

PLA does come from corn! And you're right that we do have plant based sources that are 6x the cost for a lot of things.

We dump fertilizer made from petrochemical on the plants to grow them.

And that's the rub. I have to wonder how much oil we use, to grow corn, to make ethanol, to save oil...

EDIT: I Had to do the math I needed to know!

173.3 Bushels of corn per acre: https://www.nass.usda.gov/Statistics_by_State/Iowa/Publicati...

140 gallons of fossil fuel per acre of corn: https://www.nass.usda.gov/Statistics_by_State/Iowa/Publicati...

A bushel of field corn can produce 2.77 gallons of ethanol:

Assuming these numbers are right, it isnt so bad...