UNEP: An increase in the amount of land being used for crops is one of the main reasons for the continuing loss of biodiversity and threatens to undermine attempts to meet international environmental goals, according to a new report backed by the United Nations Environment Programme (UNEP). The report, entitled Crop Expansion and Conservation Priorities in Tropical Countries, details how land, which is often rich in biodiversity, is being converted or set aside for crops like rice and maize in some 128...