By Nancy Smorch
First of all, I’d like to just point out that most agriculture was considered organic before the 1920's.
Then came the industrialized agricultural movement. With the development of chemicals to control pests, and synthetic fertilizers to replenish depleted soils, there became the need to distinguish between organic and conventional.
You have an idea of how the rest of the story goes, but the part you may not hear much about is the extent to which industrial agriculture is effecting the earth.
Below is a link to an article about the effects of industrial agriculture, especially fertilizers.
And below is a link to Dr. Mercola’s interview with a soil expert, Dr. Elaine Ingham, where they talk about sustainable soil and organic farming.
Scan the article, listen to the interview, and become educated. That's the first step in starting to put the pieces of the puzzle together for yourself.