Sunflowers struggle to survive in a drought-stricken farm field on August 11, 2012 in Albesti, Constanta county, about 270 km south east of Bucharest, capital of Romania. (Xinhua/Gabriel Petrescu)

Corn plants struggle to survive in a drought-stricken farm field on August 11, 2012 in Albesti, Constanta county, about 270 km south east of Bucharest, capital of Romania. (Xinhua/Gabriel Petrescu)

Sunflowers struggle to survive in a drought-stricken farm field on August 11, 2012 in Albesti, Constanta county, about 270 km south east of Bucharest, capital of Romania. (Xinhua/Gabriel Petrescu)

An ear corn sits on a struggling corn plant in a drought-stricken farm field on August 11, 2012 in Albesti, Constanta county, about 270 km south east of Bucharest, capital of Romania. (Xinhua/Gabriel Petrescu)