OUR ENVIRONMENT

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OUR ENVIRONMENT
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PROBLEM SUSTAINABLE DEVELOPMENT
Economic development must meet the needs of the
present without compromising the ability of
future generations to meet their own needs.
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PROBLEM SUSTAINABLE DEVELOPMENT
The earths pop. is growing larger. As developing
world becomes more developed, they consume
more.Developed nations consume too much.
Indian public transit
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HISTORY SUSTAINABLE DEVELOPMENT

• In 1992, Earth Summit in Rio de Janeiro (Brazil)
• Nations agree to Agenda 21, encouraging the
  development of a sustainable world economy.
• Since then, no one has done anything to help.

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MORAL PROBLEM SUSTAINABLE DEVELOPMENT
Should we (the developed world) be allowed to
tell them (the developing world) what sort of
lifestyle they should be allowed to live?
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MORAL PROBLEM SUSTAINABLE DEVELOPMENT
Should we (the developed world) be allowed to
tell them (the developing world) what sort of
lifestyle they should be allowed to live?
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Dubai, 1990
Same street, 2003
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PROBLEM WATER
Most of the worlds water is used by
agriculture. p. 423 textbook
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PROBLEM WATER
1. Due to increasing populations, some rivers
have dried up.
OTHER REASONS Dam-building Lower water tables
(underground aquifers) Global Warming Laws of
Evaporation
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PROBLEM WATER
This will result in DESERTIFICATION
STARVATION
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PROBLEM WATER
Compare this map to the one on page 332
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PROBLEM WATER

• 2. Pollution of water
• Sediments
• Mining
• Pesticides
• Landfill
• Industrial Wastes
• Livestock Wastes
• Nuclear
• Fertilizer
• Urban waste
• Sewage
• Seepage (ground)
• Offshore oil drilling

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SOLUTIONS WATER
DRIP IRRIGATION
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SOLUTIONS WATER
Less water use in homes.
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MORAL PROBLEM WATER
Should Canada export water to the United States?
LINKTASTIC!!!
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PROBLEM OZONE LAYER HOLE
Ozone is the only gas that can block UV. In the
1980s, people began noticing that the ozone layer
was thinning.It hasnt gotten smaller.
Source NASAOzone hole 2006(largest ever)
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PROBLEM OZONE LAYER HOLE
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SOLUTIONS OZONE LAYER HOLE
CFCs caused 80 of damage to the ozone
layer. Used since the 1930s in various
products. Industrial nations have cut their use
of CFCs Montreal Protocol.
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PROBLEM GLOBAL WARMING
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PROBLEM GLOBAL WARMING

• Causes in North America
• 40 comes from burning fossil fuels (mostly
  coal) to produce electricity.
• 33 comes from cars
• 3.5 comes from airplanes
• 12 comes from buildings.
• Methane emissions from flooded fields (such as
  the type rice is grown on)
• Use of fertilizers.
• 20-25 Deforestation, especially by burning
  trees in tropical rainforests.
• Permafrost acts as a carbon sink now that it is
  melting, gasses are released.

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PROBLEM GLOBAL WARMING

• Causes in North America
• 40 comes from burning fossil fuels (mostly
  coal) to produce electricity.
• 33 comes from cars
• 3.5 comes from airplanes
• 12 comes from buildings.
• Methane emissions from flooded fields (such as
  the type rice is grown on)
• Use of fertilizers.
• 20-25 Deforestation, especially by burning
  trees in tropical rainforests.
• Permafrost acts as a carbon sink now that it is
  melting, gasses are released.

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SOLUTIONS GLOBAL WARMING

• Solving Global Warming
• Kyoto Protocol (1997) promised to reduce gasses
  by 6 of our 1990 level by 2012. Countries that
  did not meet their goals could buy carbon credits
  from countries that were below their allotted
  levels.
• Canada did not ratify the treaty until 2002, but
  Conservatives do not like it.

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SOLUTIONS GLOBAL WARMING

• Problems
• 40 comes from burning fossil fuels (mostly
  coal) to produce electricity.
• Solutions Wind energy

Solar energy
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PROBLEM GLOBAL WARMING

• Problems
• 40 comes from burning fossil fuels (mostly
  coal) to produce electricity.
• Solutions Hydro-electric power

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MORAL PROBLEM WATER
Who are we to tell China what to do? What about
self-determination?NY TIMES ARTICLE
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SOLUTIONS GLOBAL WARMING

• Causes in North America
• 33 comes from cars
• Solutions
• High gas prices!
• In Canada, the priceof gas has DOUBLEDin the
  past 5 years.

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SOLUTIONS GLOBAL WARMING

• Causes in North America
• 33 comes from cars

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SOLUTIONS GLOBAL WARMING

• Causes in North America
• 33 comes from cars
• Solutions
• An end to large cars,
• Introduction ofhybrid cars.

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SOLUTIONS GLOBAL WARMING

• Causes in North America
• 33 comes from cars
• SolutionsWalk
• Bicycle
• Build facilities to help people do this
• - showers, safer roads, etc.

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PROBLEM GLOBAL WARMING

• Causes in North America
• 33 comes from cars
• Carbon Taxes
• Around the world,governments now chargea tax on
  gas for CO2 emissions.

SOLUTIONS GLOBAL WARMING
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SOLUTIONS SWITCHING TO CLEANER FUEL (ETHANOL)
Corn use for ethanol in United StatesSource
EarthTrends 2007, using data from the USDA
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SOLUTIONS GLOBAL WARMING

• Causes in North America
• 3.5 comes from airplanes
• Solutions- Buy carbon credits when you travel.
• Fly less.
• Learn to be Superman.

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MORAL DILEMA CARBON TAXES
MORE TAX FOR GAS MORE COST FOR TRANSPORTMORE
COST FOR TRANSPORT MORE COST TO EAT MORE COST
TO EAT NO FOOD FOR POOR PEOPLENO FOOD FOR
POOR PEOPLE
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PROBLEM GLOBAL WARMING

• Causes
• 12 comes from buildings.
• SolutionCarbon-neutral buildings

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PROBLEM GLOBAL WARMING

• Causes20-25 Deforestation, especially by
  burning trees in tropical rainforests.
• Solution- Pressure Brazil and other developing
  nations to stop cutting down forests. But why
  are they cutting down forests?

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PROBLEM GLOBAL WARMING

• The big problem SLASH-AND-BURN

What is SLASH AND BURN?- Forest is cut and
burned to provide nutrients to top-soil for
farming. WHY IS IT BAD?- Smoke when burning. -
Soil nutrients become exhausted quickly in the
meantime, lack of forest erosion
desertification.
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PROBLEM GLOBAL WARMING

• LEADS TO
• Melting permafrost
• AFFECTS

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PROBLEM SOILS
CHEMICAL DEPENDANCE For the first time in the
history of the world, every human being is now
subjected to contact with dangerous chemicals,
from the moment of conception until death.-
Rachel Carson, Silent Spring
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PROBLEM SOILS

• CHEMICALS ARE GOOD!
• Help grow more crops.-Control insects, kill
  weeds-Make food cheaper.

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PROBLEM SOILS

• CHEMICALS ARE BAD!
• Linger in environment for years.-Can pass along
  toxicity to humans over years.

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PROBLEM SOILS

• SOLUTION
• Buy Organic!

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PROBLEM SOILS
GENETICALLY MODIFIED FOODS (known as GM foods or
GMOs) Made by splicing different genes into
crops. Usually owned by large companies (the
largest being Monsanto)
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PROBLEM SOILS

• GENETICALLY MODIFIED FOODS (known as GM foods or
  GMOs)
• GOOD THINGS
• Require fewer pesticides and herbicides.
• Will allow us to feed more people as population
  increases.

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PROBLEM SOILS

• GENETICALLY MODIFIED FOODS (known as GM foods or
  GMOs)
• BAD THINGS
• Its creepy to eat Frankenfoods

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PROBLEM SOILS

• GENETICALLY MODIFIED FOODS (known as GM foods or
  GMOs)
• BAD THINGS
• Its creepy to eat Frankenfoods
• We dont know the long term effects of this food.
  (see Fox News Kills clip)
• Companies that make GMOs own the seeds to their
  products.
• The monopoly of Multinational Corporations