Interesting question. I suspect the answer is a complicated one. For one, biofuels have been largely over-hyped, and haven't fully delivered on their promise. For another, one has to question the wisdom of growing an exotic species (Jatropha originates in Central America) on vast tracts of "unused lands" in Africa -- unused (by humans) need not equal "wasted". Perhaps the "West" should butt out of the affairs of African countries, especially when they'd clearly be doing it for their own benefit much more than that of the local residents. Finally, this particular species is poisonous (coming from the spurge family) -- again, I question the wisdom of vast crops of such a species... surely, native biodiversity has to count for something, not just our unquenchable thirst for fuel?Lots to think about, that's for sure...