Some of Guatemala's main exports are fruits, vegetables, flowers, handicrafts, cloths and others. In the face of a rising demand for biofuels, the country is growing and exporting an increasing amount of raw materials for biofuel production, especially sugar cane and palm oil. Critics say that this development leads to higher prices for staple foods like corn, a major ingredient in the Guatemalan diet. As a consequence of the subsidization of US American corn, Guatemala imports nearly half of its corn from the United States that is using 40 percent of its crop harvest for biofuel production. In 2014, the government was considering ways to legalize poppy and marijuana production, hoping to tax production and use tax revenues to fund drug prevention programs and other social projects.