Thanks for this link!
As for the debate, I think it arises from the fact that while there are differences between some organic vs. non-organic foods, there still is no consensus on what this means to our health.
Also, near where I live there are several organic farms that are on land used for many years by potato farmers who relied heavily on the very pesticides buyers of organics want to avoid. Their "organic" produce may be worse for me than something grown on a conventional farm. The certification process doesn’t take such factors into account.