> Here's one: Organic food needs soil, sunlight, and water. Conventional food needs soil, sunlight, water, oil refineries, chemical plants, etc., plus all the heavy industry necessary to support those things.

It is absolutely ignorant to believe that organic is better for the environment than non-organic. Oil refineries and heavy industry are needed to support farming enough to feed the world, organic or not. And organic food is more expensive, in terms of resources consumed, not less.