translate English to French: Several factors have contributed to this development: (1) low levels of world stocks (especially for wheat and maize) following two years of below-average harvests in Europe in 2006 and 2007; (2) crop failures in major producing countries like Australia in 2006 and 2007; (3) rapidly growing demand for grain-based biofuel production supported by subsidies; (4) gradual changes in agricultural policies of the OECD countries, where reduced levels of subsidies have led to lower surplus production.
En outre, les marchés agricoles sont de plus en plus liés aux marchés non agricoles (énergie, industrie, finance, etc.). Le changement climatique et les contraintes de ressources (alimentation en eau, en particulier) influencent également la situation globale de l’offre et de la demande alimentaire.