Managing Waste: 3Rs
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Transcript of Managing Waste: 3Rs
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
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
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
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