Extinction of Crops
Men today are cultivating just 150 species, in the past we grew more than 7000 plants for consumption, warns ANDREA RIZZI in El Pais (13.6.2006). The diversity of the crops is decreasing every time faster. The FAO asserts that in the last century we have lost 75% of the varieties in the field. This means less resistance and adaptation to climatic changes and diseases. On the other hand possibilities are diminishing that allow the improvement of crops by mixing genes.