he belief that resources can be ultimately wasted, or disposed of, makes a recycling society impossible. Today, there is a massive flow of nutrients, in the form of food, from rural areas to cities, and these nutrients, in the form of excreta, are disposed of into deep pits or lakes, rivers and coastal waters. This has several major consequences, one of which being nutrients and organic matter in excreta are toxic to different life forms living in water (e.g., some fish and coral reefs). Fish can become contaminated and infect people. Fish stocks, a major source of protein and livelihood for people, are in decline in part from sewage pollution. Biodiversity, the different forms of life that supply all our needs, is also reduced, threatening human well-being. In addition, the linear flow of nutrients from rural areas to urban waste sinks results in soil infertility, necessitating the addition of chemical fertilisers and pesticides.
he belief that resources can be ultimately wasted, or disposed of, makes a recycling society impossible. Today, there is a massive flow of nutrients, in the form of food, from rural areas to cities, and these nutrients, in the form of excreta, are disposed of into deep pits or lakes, rivers and coastal waters. This has several major consequences, one of which being nutrients and organic matter in excreta are toxic to different life forms living in water (e.g., some fish and coral reefs). Fish can become contaminated and infect people. Fish stocks, a major source of protein and livelihood for people, are in decline in part from sewage pollution. Biodiversity, the different forms of life that supply all our needs, is also reduced, threatening human well-being. In addition, the linear flow of nutrients from rural areas to urban waste sinks results in soil infertility, necessitating the addition of chemical fertilisers and pesticides.
การแปล กรุณารอสักครู่..
