L14 waste


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L14 waste

  1. 1. What are the problems of rapid urbanisation in poorer parts of the world?
  2. 2. Syllabus <ul><li>Key idea: </li></ul><ul><li>Rapid urbanisation in a poorer part of the world requires the management of the environmental problems caused. </li></ul><ul><li>Specification content: </li></ul><ul><li>Difficulties of disposal of waste, much of which is toxic. </li></ul><ul><li>Effects and management of air and water pollution. </li></ul>
  3. 3. Learning outcomes… <ul><li>All will understand that rapidly expanding cities produce large amounts of waste, of varying sorts. </li></ul><ul><li>Most will understand that there are a variety of ways to try to deal with this waste. </li></ul><ul><li>Some will understand that some ways of dealing with waste are more sustainable than others. </li></ul>
  4. 4. References <ul><li>AQA A pg 210 – 212 </li></ul><ul><li>CGP pg 91 </li></ul>
  5. 5. Jakarta, Indonesia What problem (linked to rapid urbanisation) is shown?
  6. 6. Problems of rapid urbanisation <ul><li>Expanding cities and industrialisation can lead to problems of air and water pollution and disposal of waste. </li></ul><ul><li>Waste disposal – people in cities create a lot of waste. This can damage people’s health and the environment, especially if toxic and not disposed of properly. </li></ul><ul><li>Air pollution – burning fossil fuels, exhausts and factories </li></ul><ul><li>Water pollution – sewage and toxic chemicals from industry can get into rivers and streams. </li></ul><ul><li>Non-existent or poor regulations and a lack of planning for an environmental emergency make problems worse </li></ul>
  7. 7. Waste disposal (1) <ul><li>In richer countries, waste is disposed of by: </li></ul><ul><li>burying it in landfill sites </li></ul><ul><li>burning it </li></ul><ul><li>recycling schemes </li></ul><ul><li>Poorer countries struggle to dispose of the large amount of waste created by rapid urbanisation because of: </li></ul><ul><li>Money – simply cant afford to dispose of waste safely – money is needed for more urgent problems e.g. health care </li></ul><ul><li>Infrastructure – poorer countries don’t have the infrastructure needed e.g. poor road sin squatter settlements mean waste disposal lorries can’t get in to remove rubbish. </li></ul><ul><li>Scale – the problem is HUGE </li></ul>
  8. 8. Waste disposal (2) <ul><li>Waste provides a resource and a means of making a living for many shanty dwellers in poor countries </li></ul><ul><li>Children and adults scavenge and extract materials and then reuse or resell them. </li></ul><ul><li>Car tyres may be made into sandals </li></ul><ul><li>Food waste is fed to animals or used as a fertiliser on vegetable plots </li></ul><ul><li>Toxic waste and its safe disposal is a key issue in areas where the manufacturing industry is increasing. </li></ul>
  9. 9. Electronic waste … <ul><li>Creation of electronic waste is another major problem in a rapidly industrialising country like India </li></ul><ul><li>In the cities, India’s poor scrape a living by breaking down PCs and monitors. </li></ul><ul><li>They boil, crush or burn parts in order to extract valuable materials like gold or platinum. </li></ul><ul><li>What they don’t realise is that the toxic chemicals inside like cadmium and lead can pose serious health risks. </li></ul><ul><li>India’s hospitals are starting to see patients with 10 x the expected level of lead in their blood. </li></ul><ul><li>Dumping and unsupervised recycling of e-waste is literally leading to a brain drain </li></ul>
  10. 10. What happens to some recycled waste? (3) <ul><li>http://www.youtube.com/watch?v=E4r3krs8eEY </li></ul><ul><li>Britain gives China a toxic shock Sky news 25.11.06 http://news.sky.com/skynews/video </li></ul><ul><li>Blood sweat and luxuries </li></ul>
  11. 11. Your task… <ul><li>Use AQA A book p210 (2nd paragraph) and p211 to make a poster or leaflet to show the issues of waste disposal in LEDC cities. </li></ul><ul><li>Include: </li></ul><ul><li>Why waste is a problem </li></ul><ul><li>What kinds of waste </li></ul><ul><li>Give some facts and figures about amount of waste </li></ul><ul><li>What are the dangers for people who try to make a living from waste in LEDC cities </li></ul><ul><li>What is being done about the problem </li></ul><ul><li>How successful are these measures? </li></ul>