what next with indigo?

An article in last Wednesday's Guardian about the global rush to biofuels and its detrimental effect on food crops and food security got me thinking about any future widespread growing (in Britain or Europe) of indigo crops, and other implications of indigo growing: is organic indigo available? If not, what are the environmental consequences of non-organic production? Is/would it be grown on land better/previously used for food crops? Can it be intercropped? What are social conditions like for farmers, pickers and processors?

Additionally I will be looking further into synthetic indigo production and its environmental consequences. But the indigo research will be later this month or early October, once the organic cotton tests are concluded. More on both organic cottons and indigo are in the August posts.