Managing waste recycling

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Managing waste recycling

  1. 1. Managing Waste: 3Rs<br />7SCIENCE: Mon., Feb. 28<br />
  2. 2. Review: what do the 3Rs represent?<br />3Rs represent the ideas of:<br />Recycling<br />Reducing<br />Reusing<br />We can use these ideas to minimize our impact on the environment <br />
  3. 3. 3Rs: Recycling<br />Recyclable: If an object is recyclable, it means it may be processed and used again<br />E.g. aluminum cans for parts of cars<br />Reuse: to use something again, for the same or new purpose<br />E.g. using the other side of paper, using water bottles to create a building material<br />Reduce: to minimize or lessen our use of resources and products<br />E.g. instead of printing a page to read from the internet, save paper by reading it online, ride your bicycle instead of taking a car <br />
  4. 4. Required Recycling<br />Should it be mandatory?<br />Many countries in the world (U.S., Japan) have mandatory recycling programs<br />In the law that people MUST recycle<br />There are advantages and disadvantages <br />In some places, you may receive a deposit (money) when you return drink containers<br />E.g.: Colombia <br />
  5. 5. Advantages/Disadvantages<br />What are some advantages to recycling?<br />Saves energy<br />Saves resources<br />Reduces land needed for manufacturing (factories) and cutting trees (deforestation)<br />Saves land used for landfills<br />Jobs for people to reuse these products<br />What are some disadvantages to recycling?<br />Recycling can cost a lot of money: for collection, workers, machines <br />People that work in mining and manufacturing may lose their jobs<br />

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