Reuters: The global production of biofuels is not behind the recent rise in world food prices, two German ministers said on Tuesday. Germany should retain its target of reaching 20 percent renewable energy use by 2020 including 10 percent biofuels, Agriculture Minister Horst Seehofer told a press conference. Rising food prices had largely been caused by the growing world population coupled with increasing spending power in several developing regions, he said. Environment Minister …