A Granted it can get pretty cold in winter, but with modern agriculturaltechniques, the Midwest could be self-sufficient for many types of fruit and vegetables, cutting out the massive environmental cost of shipping tons of vegetables half way across a continent. (8thparagraph)
B Even in organic crop production,pestsand disease cause wastage; and even if harvested and distributed locally, part of a crop will always be wasted. (5thparagraph)
C This wastage has a huge impact in terms of natural resources, particularly space and water, which in turn have hugeimplicationsfor the global environment. (4thparagraph)
D In Brittany, France, many streams and beaches have been seriously polluted by nutrient-rich water running off fields, causing "algal bloom" along the seashore and covering somebeachesin green slime. (13thparagraph)