1. Managing Waste: 3Rs 7SCIENCE: Mon., Feb. 28

2. Review: what do the 3Rs represent? 3Rs represent the ideas of: Recycling Reducing Reusing We can use these ideas to minimize our impact on the environment

3. 3Rs: Recycling Recyclable: If an object is recyclable, it means it may be processed and used again E.g. aluminum cans for parts of cars Reuse: to use something again, for the same or new purpose E.g. using the other side of paper, using water bottles to create a building material Reduce: to minimize or lessen our use of resources and products 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

4. Required Recycling Should it be mandatory? Many countries in the world (U.S., Japan) have mandatory recycling programs In the law that people MUST recycle There are advantages and disadvantages In some places, you may receive a deposit (money) when you return drink containers E.g.: Colombia

5. Advantages/Disadvantages What are some advantages to recycling? Saves energy Saves resources Reduces land needed for manufacturing (factories) and cutting trees (deforestation) Saves land used for landfills Jobs for people to reuse these products What are some disadvantages to recycling? Recycling can cost a lot of money: for collection, workers, machines People that work in mining and manufacturing may lose their jobs