Jatropha Plantations in France

Jatropha is a word I have never noticed hearing before today, when a client asked about buying 50 hectares of land here in Languedoc to grow it as a crop for bio-diesel production.

A quick read through some Google searches seems to indicate the Mediterranean climate may - or may not be suitable for Jatropha Curcas but I am not sure that replacing vines with a poisonous shrub in the South of France is a good idea - does anyone know anything about this ?