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Pollution Notes
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  • 1. 1-3 What IsPollution
  • 2. 1-3 WHAT IS POLLUTION Pollution – contamination of the environment by achemical, noise, or heat that is harmful to humans orother organisms .
  • 3. POLLUTION TYPES 1. Point sources (smoke stack) 2. Nonpoint sources (water runoff) Preventing pollution is more effective andless costly than cleaning up pollution.
  • 4. 1-4 WHY DO WE HAVE ENVIRONMENTAL PROBLEMS? Major causes of environmentalproblems… Exponential population growth Wasteful and unsustainable resource use Poverty Failure to include environmental costs of goodsand services in market prices
  • 5. Fig. 1-1, p. 1Huntingand gatheringAgricultural revolutionIndustrial revolutionBlack Death—the PlagueIndustrialrevolutionFig. 1-10, p. 16?2-5 millionyears1312111098765432108000 6000 4000 2000 2000 2100B.C. A.D.
  • 6. Fig. 1-12, p. 17Number of people(% of worlds population)0.93 billion (14%)1 billion (15%)1 billion (15%)1.1 billion (16%)2 billion (29%)2 billion (29%)2.5 billion (37%)Enough foodfor good healthAdequatehousingAdequatehealth careClean drinkingwaterElectricityEnough fuel forheating and cookingAdequatesanitation facilitiesLack ofaccess to
  • 7. ENVIRONMENTAL EFFECTS OF AFFLUENCE Harmful effects High per-capita consumption and waste ofresources – large ecological footprints Advertising – more makes you happy Affluenza Beneficial effects Concern for environmental quality Provide money for environmental causes Reduced population growth
  • 8. DIFFERENT ENVIRONMENTAL VIEWS Environmental ethics – beliefs about what is right orwrong with how we treat the environment. Environmental worldview – set of assumptions andvalues reflecting how you think the world works andwhat you think your role in the world should be
  • 9. ENVIRONMENTAL WORLDVIEW: 1. Planetary management worldview - people areseparate from nature and we are in charge of it
  • 10. ENVIRONMENTAL WORLDVIEW: 2. Stewardship worldview – people should manage theearth for our benefit but we have a responsibility to becaring and responsible managers
  • 11. ENVIRONMENTAL WORLDVIEW: 3. Environmental wisdom worldview - we are part of anddependent on nature, nature exists for all species not justpeople
  • 12. HOW CAN WE LIVE MORE SUSTAINABLYThree Big Ideas:1. Rely more on renewable energy likesolar energy2. Protect biodiversity3. Do not disrupt earth’s naturalchemical cycles