Your SlideShare is downloading. ×
Recycling and substitution
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

Recycling and substitution

5,612
views

Published on


0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
5,612
On Slideshare
0
From Embeds
0
Number of Embeds
5
Actions
Shares
0
Downloads
69
Comments
0
Likes
2
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • On August 1st 1986, a local neighborhood organization in Vermont launched a campaign to ban the use of foam food packing in Mcdonalds and replace it with cardboard packaging. This campaign got so much publicity and raised numerous health, ecological and social concerns about the use of stryofoam, that in august 1st, 1990, McDonalds stopped using Styrofoam to package their food.
  • Transcript

    • 1. Conservation Strategies: Recycling and Substitution
    • 2. Recycling
      Definition:
      The processing of industrial household waste so that materials can be reused
    • 3. Why is Recycling Necessary?
      Large cities today generate as much as 20000 tonnes of garbage per day
      2 planets needed by 2020
      Humans using 30% more resources than sustainable
      Running up an ecological debt of $4tr (£2.5tr) to $4.5tr every year
    • 4. Types of recycled wastes
      Plastics
      Glass
      Metals
      Paper
      Rubber
    • 5. General Example: Aluminum Cans (1)
    • 6. General Example: Aluminum Cans (2)
    • 7. Pros and Cons of Recycling Aluminum
      Advantages:
      Saves energy and reduces greenhouse gas emissions
      Recycling a single aluminum can saves enough to power a TV for 3 hours
      Quality of metal doesn’t diminish even after being recycled
      Creates jobs
      Disadvantages:
      Process pollutes water – adds metal ions into water, makes it poisonous
      Need land to fill the waste
      Transportation costs
    • 8. General Example: Recycling Class
      6) Treatment (Processing)
      2) Glass Container Making
      1)Raw Materials
      4) Use at Home
      3)Transportation to Retailers
      5) The Bin
      Collection
    • 9. Pros and Cons of Recycling Glass
      Advantages:
      Making glass from recycled materials cuts water pollution by 50%
      Glass can be recycled indefinite number of times
      Recycling one glass jar saves enough electricity to light a conventional60 watt bulb for 4 hours
      Creates Jobs!
      Disadvantages
      Still pollutes water
      Need land to fill the waste
      Transportation Costs
    • 10. Local Case Study: Novelis Inc. (1)
      Warrington, Cheshire, UK
      Produces ingots from beverage cans, only aluminum can recycling plant in Europe
      Current Capacity – 135000 tonnes per year
      Initial Capital investment (1990) - £5 million
      Further Capital investment - £7 million
      2009 over 97 tonnes of cans (approximately 6.3 million) were sent for reprocessing
    • 11. Local Case Study: NovelisInc (2)
      The ‘closed recycling loop’ saves 95% of the energy required to make aluminum from its raw materials, and reduces greenhouse gas emissions by the same amount
      The plant is currently registered the Environment Agency under the Environmental Protection Act 1990
      2009 over 97 tonnes of cans (approximately 6.3 million) were sent for reprocessing
    • 12. Recycling in Europe
    • 13. National Case Study: Recycling in Denmark
      Europe’s “greenest” countries
      2003 suggest that 31% of all household waste was recycled
      10,000 Danes are in the business of collecting waste - more than 0.1% of the entire population
    • 14. Global Case Study: US and China
      US recycles about 28% of its waste
      42% of all paper
      40% of all plastic soft drink bottles
      55% of all aluminium beer and soft drink cans
      57% of all steel packaging
      52% of all major appliances are now recycled
    • 15. Global Case Study: Recycling in China
      China’s paper industry imported almost 20 million tonnes in, primarily from the US, Europe and Japan- NGO Forest Trend, 2006
      USA exported 11.6 million tons of recovered paper and cardboard to China in 2008 – Takes up land
      China’s paper recycling industry prevented 54 million metric tons of wood being harvested for pulp – 2006 (BBC)
      Brings employment
      Con -The recovery process results in the release of waste liquids containing toxic substances, and cases of damage to the environment and public health emerge continuously. Also takes space to store the wastes.
    • 16. Resource Substitution
      Definition:
      Substitution refers to the using one renewable resource than another.
      Renewable Resource: Resources that can be replaced by natural processes at a rate comparable or faster than rate of consumption.
    • 17. General Example: Food Packing – Cardboard FOR Styrofoam
      An example of resource substitution is the use of Cardboard packaging rather than Styrofoamin food packaging.
    • 18. Pros and Cons of Cardboard FOR Styrofoam
      Advantages:
      Environmental:
      • Production processes doesn’t emits a lot of toxic waste
      • 19. Does not promotes the use of petroleum
      • 20. It is biodegradable
      Social
      • Does not expose workers to toxic chemicals
      • 21. Does not contaminate food
      Disadvantages:
      • The production of cardboard cuts down trees – can be unsustainable.
      • 22. Not energy efficient – only has 24% energy savings. (Note: aluminum has 95% energy saving)
      • 23. More transport cost - heavier
    • General Example: Biofuel FOR petroleum based fuel
      Another example of resource substitution is the use of biofuel FOR petroleum based fuel. (AVIATION FUEL)
      Aviation Fuel: : Specialized type of petroleum-based fuel to power aircraft.
      Biofuel: Are any kind of fuel made from living things, or from the waste they produce
    • 24. Pros and Cons of Biofuel FOR Petroleum based fuel
      Advantages:
      Growing plants absorb carbon dioxide from the atmosphere
      Biofuels reduce emissions by 50%-60% compared to fossil fuels
      Disadvantages:
      Still emits fossil fuels
      Less plants used for food/nutrition = rising food prices
      Reduced Biodiversity – Reduce habitat for animals and wild plants
    • 25. General Example: Tap water FOR bottled water
      • Another example of resource substitution is the use of tap water rather than bottled water.
    • Pros and Cons of using tap water rather than bottled water
      Advantages:
      • Way, way cheaper. (Approx. 2000 times cheaper)
      • 26. Tap water is more regulated than bottled water. While the Environmental Protection Agency enforces water quality standards for tap water, the FDA makes no such demands for bottle water.
      • 27. Doesn’t produce as much waste. In the US, people but half a billion bottles of water every week.
      • 28. In taste tests across the country, people consistently choose tap over bottled water.
      Disadvantages
      • Some sources of tap water might not be that clean. (Especially in developing countries)
    • Local Case Study: Cleveland’s Tap Water
      Fiji Water’s Ad Campaign.
      In the city of Cleveland, people didn’t want to drink water from the city water from the city tap.
      “The Label Says Fiji because it’s not bottled in Cleveland.”
      MANUFACTURED DEMAND
    • 29. Local Case Study: Cleveland’s Tap Water
      Cleveland’s public utilities director Julius Ciaccia decided to put the two waters to the test:
      the results found 6.31 micrograms of arsenic per liter in the Fiji bottle. Cleveland tap water, on the other hand, had no measurable arsenic
      Cleveland’s NewsChannel5 held a blind taste test. The result? Testers preferred Cleveland water.
    • 30. Local Case Study: Cleveland’s Tap Water
      Environmental Concern
      People in the U.S. buy more than half a billion bottles of water every week. That’s enough to circle the globe more than 5 times.
      Each year, making the plastic water bottles used in the U.S. takes enough oil and energy to fuel a millioncars
      What happens to all these bottles when we’re done? 80% percent end up in landfills, where they will sit for thousands of years
    • 31. National Case Study
      “McToxins”
      What Happened?
      August 1st1987 - Vermont’s Organization for Cleanup launched a campaign to ban the use of foam food packaging in Mcdonalds and replace it with cardboard packaging.
      August 1st 1990- McDonalds joined forces with the Environmental Defense Fund and banned the use of Styrofoam to adopt cardboard packaging.
    • 32. National Case Study
      “McToxins”
      Why?
      • Non-biodegradable – Takes 900 years to break down. (Paper takes 2-5 months to break down.)
      • 33. CCHW (The Community Center for Health & Wellness – Mcdonalds contributed to 1.3 billion cubic feet of foam food packaging annually. (US estimates only)
      • 34. Contaminates food - Styrene is a cancer causing agent – linked with leukemia
    • National Case Study
      “McToxins”
      Results:
      • Provided a 70-90% reduction in sandwich packaging volume – reducing landfill space, energy used and pollutant released.
      • 35. 510 million kilowatt hours were saved in 1999
      • 36. Eliminated over 300 million pounds of packaging. Note: That’s enough to keep Peoria, Illinois trash free for 10 years
      • 37. Recycled 1 million tons of corrugated (card board) boxes. Reducing restaurant waste by 30%.
    • Global Case Study
      A Virgin Atlantic jumbo jet has flown between London's Heathrow and Amsterdam using fuel derived from a mixture of Brazilian babassu nuts and coconuts.
      Virgin boss Sir Richard Branson said the flight marked a "vital breakthrough" for the entire airline industry.
      Virgin's Boeing 747 had one of its four engines connected to an independent biofuel tank that it said could provide 20% of the engine's power.
      Could routinely be flying on plant power within 10 years.
    • 38. Global Case Study: Disadvantages
      “High-altitude greenwash”
      Less air travel is the only answer
      Biofuels do very little to reduce emissions
      Increase global food prices
      Could led to DEFORESTATION
    • 39. THANK YOU
      THANK YOU