some liquor producers are using more eco friendly ways of making product...perhaps using the 'search' mode on your pc would yield more accurate results
Vodka is made from the distilled tears of sexually abused unicorn orphans, so I think that means it's organic
The majority of mainstream Vodkas are made from grains (rye, wheat, corn or sorghum). It can be made from any starch/sugar rich plant material or even pure sugar. The simple explanation of how its made is - the starting material is mixed with water and yeast and allowed to ferment, once fermentation is complete, it is distilled, then you have Vodka. Whether or not it's eco-friendly would really be up to the specifics of the person/business making it. I'm sure its possible to do but to what extent the manufactures are currently using, I don't know.