Food Consumption Habits and Climate Change

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					    Climate Change

Andrew Mark from Earth Matters
         What we will cover
•   Introduction
•   What Climate Change is
•   Food and Climate Change
         Climate Change
• What is the theory?
• How does it work?
      Climate Change cont.
• Radiation from the Sun
• We are experiencing a net increase in
  Radiation retention
• “Global Warming”

Gas Effect
       Greenhouse Gases
• GHGs are atmospheric compounds that
  keep solar radiation in by re-reflection
• CO2 and Methane
• Fossil fuels
• Waste matter and decomposition
              GHGs cont.
•   Fossil Fuels, CO2
•   Cars, Trains, Planes, Ships, Machines
•   Power Stations
•   Fertilizers
•   Plastics
•   100 years in atmosphere
             GHGs cont.
•   Methane
•   Trash, Landfills
•   Dams
•   Animal and Human waste
•   10 years in atmosphere
• 20% of world, us the “developed” world
  consumes 80% of the world’s resources.
• If the whole world were to live the way we do
  here, we would need 4 more planets.
• What will happen to CO2 levels when (I am
  generalizing here) China, India, Africa, South
  America, the other 80% of the world decides
  they also want cars, refrigerators, disposable
• Will we stop them by force? Or just trick them,
  bureaucracy them out of resources…
    Climate Change part 2
• It is happening, evidence
• Greenhouse Gas Measurements of
  CO2 and Methane in Atmosphere
• Vostoc Ice Cores
• Measurable temperature changes
• Climate Change Modeling Computers
   Climate Change p2 cont.
• It is not happening
• Can we link human CO2 and Methane
  emissions to increase?
• This is natural 20,000 year cycle?
• Temperatures
• Computers
• If it does happen it will be good
   Climate Change p2 cont.
• It is happening at an unprecedented
• CO2 and Methane have increased at an
  unprecedented rate
• Intergovernmental Panel on Climate
  Change believes it is happening
    Climate Change p2 cont
• Sea Levels
• Shutting off the Thermohaline
  Circulation Pattern
• Extreme Weather
• Animal Migration Patterns and
  Biodiversity loss
             Kyoto Accord
• We will reduce our GHG emissions to the
  levels of 1990.
• This is 10% of the reduction that will be
  needed to actually prevent climate change
  from happening
• Has been thwarted
• USA and Russsia
• Estimates that in 10 years we could have
  reached unpreventable stages…
     One Tonne Challenge
• Industry makes up 75% of Canada’s
  GHG emissions
• Individuals on average contribute 5
  tonnes of GHG a year
• Government wants you and everyone to
  reduce their personal emissions by one
     Main sources of Personal
         GHG emissions
•   All Travel
•   Planes are #1
•   Your Refrigerator
•   Your home heating
•   Your light bulbs
•   Your appliances
•   Your FOOD!
            What we covered
•   Introduction
•   What Climate Change is
•   What Greenhouse Gases are
•   How Fossil Fuels play their role
•   Our way of life
•   The argument
•   What we are doing
So then, what does food have
to do with climate change and
     greenhouse gases?
       Food: A Brief History
• Food used to be produced locally, and eaten
• Pre-refrigeration
• Trains changed everything, and made it
  possible and profitable to produce food in one
  location and sell it in another far away.
• The birth of our current food system
• 20 times more energy needed to produce the
  same amount of food than in 1910
Food and Transport
• Fossil fuel burning
• Great distances
of travel, planes
for New Zealand
lamb, ships for
Australian Apples,
Trains and Trucks
     Where does this food go?
     Where did it come from?
•   Toilet? And where does that go?
•   Garbage? And where does that go?
•   Compost?
•   Digestion and Metabolism
•   Displaced nutrient cycling
• When food is traded, it is good right?
• Food transport is good for famine relief?
• What if some countries cannot provide
  enough food for themselves without
• But does this make it OK for everyone?
• Plastic is made of
Petroleum products
• Petroleum is a…
• Packaging takes
Energy to produce
• Buying Naked
• Buying Bulk
• Plastic Bags
        Packaging cont.
• Metal waste
• Paper products
• Biodegradable
• Canning at home
       Why organic food?
• Fertilizers
• Nitrogen production through Haber
• Origin WWI
• Organic Needs vs. Industrial Needs
• 30-70% more associated ghg emissions
        Organic Problems
• Price and Class issues
• Reality of production needs, organic will
  not feed the world
• Why is it so expensive?
• Government spending and subsidies
      Food Needs
•   Water
•   Sun
•   Nutrients
•   Then moves up
            The food chain
•   Where do we eat on it?
•   Consequences
•   Maintenance
•   Disease
•   Humane?
•   Waste
          The food chain
• Trophic levels, Herbivores, Carnivores,
• Primary, secondary, tertiary
• Only 10% moves from one to the next
• Efficiency
            Some Stats
• 77% of our food grain goes to animals
  in Canada
• If one was to weigh humans and farm
  animals in Canada, animals would
  weigh 4.3 times as much
• A meat diet requires 7 times the amount
  of land, fertilizer and thus, farm
  associated GHG production
            Processed Food
•   Orange juice, 10L orange to 2L diesel
•   Peanut Butter
•   Apple Sause
•   Whip Cream
•   Cheese
•   Mayo
How much Fossil Fuel is left?
         So, the case I make
•   Climate Change
•   Local
•   Organic
•   Packaging
•   Food Chain and Animal products
•   Waste
•   Processed