41. However, such intensive agriculture in such an arid area has had a significant negative impact of water supplies. 42. Its banks are the site of intensive agriculture , and in addition it receives runoff from multiple nearby oil refineries. 43. "People are fed up with intensive agriculture , " says Bert van den Berg of the Dutch animal-rights organization Dierenbescherming. 44. The remainder of the state consists of western prairies now given over to intensive agriculture ; eastern Native American inhabitants. 45. It is recognized that some techniques used to sustain intensive agriculture can be cruel to animals such as mutilation. 46. Because both the world population and the intensive agriculture used to support it are growing, ammonia demand is growing. 47. The lake chains and reservoirs are more problematic, since dense population, intensive agriculture and industry may cause quite extensive pollution. 48. The soil could not be developed for intensive agriculture and was used for rearing of bulls in coarse natural pasture. 49. Even if it is interesting, one pass over a lot of kinds of insects elsewhere disappeared for the intensive agriculture . 50. The Soil Association was founded in part due to concerns over intensive agriculture and in particular the use of herbicides.