Presentation is loading. Please wait.

Presentation is loading. Please wait.

Do Now: Create a list of all the things you have thrown away today? What did you do with your trash? Are you being environmentally friendly?

Similar presentations


Presentation on theme: "Do Now: Create a list of all the things you have thrown away today? What did you do with your trash? Are you being environmentally friendly?"— Presentation transcript:

1 Do Now: Create a list of all the things you have thrown away today? What did you do with your trash? Are you being environmentally friendly?

2 Aim: How Should We Deal with Solid Waste? Concept 21-2 A sustainable approach to solid waste is first to reduce it, then to reuse or recycle it, and finally to safely dispose of what is left.

3 We Can Burn or Bury Solid Waste or Produce Less of It Waste Management – Reduce harm, but not amounts Waste Reduction – Use less and focus on reuse, recycle, compost Integrated waste management – Uses a variety of strategies

4 Integrated Waste Management What happens to the solid waste you produce?

5 Thumbs Up, Thumbs Down Thumb up – fully understand concept Thumb down – do not understand concept Thumb sideways – are not sure about the concept

6 Integrated Waste Management: Priorities for Dealing with Solid Waste Why do you think most countries do not follow these priorities, even though they are based on reliable science?

7 Science Focus: Garbology William Rathje: analyzes garbage in landfills Landfills and trash decomposition – Much slower than previously thought Should landfills be exposed to more air and water to hasten decomposition of their wastes? Explain.

8 We Can Cut Solid Wastes by Reducing, Reusing, and Recycling Waste reduction is based on – Reduce – Reuse – Recycle

9 We Can Cut Solid Wastes by Reducing, Reusing, and Recycling Six strategies: 1.Redesign manufacturing processes and products to use less material and energy 2.Develop products that are easy to repair, reuse, remanufacture, compost, or recycle 3.Eliminate or reduce unnecessary packaging 4.Use fee-per-bag waste collection systems 5.Establish cradle-to grave responsibility 6.Restructure urban transportation systems

10 Thumbs Up, Thumbs Down Thumb up – fully understand concept Thumb down – do not understand concept Thumb sideways – are not sure about the concept

11 Summary: Should consumers have to pay for plastic or paper bags at grocery and other stores? Do you support banning all beverage containers that cannot be re-used as Denmark has done?

12 Which of these actions do you think are the most important and why? Which of these things do you do?


Download ppt "Do Now: Create a list of all the things you have thrown away today? What did you do with your trash? Are you being environmentally friendly?"

Similar presentations


Ads by Google