1-5 Pollution

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1-5 Pollution

• What is pollution and where do pollutants come
  from?
• What types of harm do pollutants cause?
• What can we do about pollution?

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What is Pollution?
Pollution any addition to air, water, soil, or
food that threatens the health or survival of
humans or other organisms
What do you think? Is it cheaper to prevent
pollution from being released in the first place?
OR clean it up once it has already been
released?
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1-6 Environmental and Resource Problems Cause
and Connections
What are the major environmental problems today?
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1-7 Cultural Changes and Sustainability

• Agricultural Revolution (10,000 12,000 years
  ago)
• Shift from nomadic groups to settled communities
• Domestication of animals and cultivation of
  plants
• Little impact on environment
• Only altered small areas of land
• Low population size and density
• Enough land so they could let fields restore
  themselves after being used
• Industrial Revolution (1700s 1800s)
• Increase in production, trade, and distribution
  of material goods
• Renewable ? Nonrenewable resources
• Small scale production ? Large scale production
• Development of modern cities (Fewer farmers, more
  city-dwellers, concentrated pollution)
• Commercial agriculture
• Information/Globalization Revolution (gt1950s)
• Improvements in transmitting information (phone,
  radio, TV, computer, internet, etc.)
• Rapid access to information and rapid increase in
  information
• Globalized economy

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1-8 Is Our Present Course Sustainable?