Global Crop Diversity Declining, Study Shows
An international study led by the University of Toronto found that global crop diversity is declining, with more of the same kinds of crops being grown on large-scale industrial farmland worldwide. The study found that soybeans, wheat, rice, and corn together occupy just less than 50% of the world’s agricultural land. Furthermore, there is a lack of genetic diversity within individual crops, with six individual genotypes comprising 50% of all corn crops. Lead author Adam Martin comments that this lack of diversity reduces food sovereignty and makes the global agricultural system increasingly susceptible to pests or diseases.