Agriculture, forestry, and fishing in Japan
Agriculture, farming, and fishing form the primary sector of industry of the Japanese economy together with the Japanese mining industry, but together they account for only 1.3% of gross national product. Only 20% of Japan's land is suitable for cultivation, and the agricultural economy is highly subsidized.
Entomophagy
Animal livestock is the largest anthropogenic user of land. 26 percent of the Earth's ice-free terrestrial surface is occupied by grazing, while feedcrop production amounts to 33 percent of total arable land. Livestock production accounts for 70 percent of all agricultural land and 30 percent of the planet's land surface. According to the Food and Agriculture Organization, livestock activity such as overgrazing, erosion, and soil compaction, has been the primary cause of the degradation of 20 percent of the world's pastures and rangeland.
Animal livestock is responsible for 64 percent of man-made ammonia emissions, which contribute significantly to acid rain. By extension, animal waste contributes to environmental pollution through nitrification and acidification of soil.