A worker takes a break at an olive oil press in the village of Asopia, located in the district of Viotia, central Greece. The olive harvest has begun in many parts of the country and generally runs until the end of the month in most regions. Greece is the third-biggest producer of olive oil in the world, after Spain and Italy. Last year’s summer fires had a negative impact on olive oil production for 2007, which was also harmed by dry weather conditions. According to industry sources, olive oil production is the main source of income for some 500,000 households across the country. Additionally, there are approximately 2,000 presses nationwide that each produce about 200 tons of olive oil.