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Human Impact on Environment, Conservation, Biodiversity

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Title: Human Impact on Environment, Conservation, Biodiversity


1
Human Impact on Environment, Conservation,
Biodiversity
2
Human Impact..
3
All Species Impact Environment
  • Understanding how humans interact with the
    biosphere is CRUCIAL to protecting natural
    resources.
  • Humans impact the environment more than any other
    species!!

4
Overview
  • 6 Main Ways of Impact
  • Hunting
  • Agriculture
  • Industry
  • Urban Development
  • Waste Production
  • Energy Use

5
Industry
  • Industrial Revolution mid 1800s
  • Economy, Conveniences and Productivity advances
  • More stuff ? more waste
  • Increase use of Tools, Technology, Science
  • Use of Fossil Fuels release CO2 ? Greenhouse
    Effect
  • Chemical and waste by-products of manufacturing

6
Urban Development
  • Physical Changing of Ecosystems
  • Soil, Flora and Fauna ? Concrete
  • Suburban Sprawl Commuters to Urban Areas
  • Increases Drive time to work air pollution
  • Decreases
  • Biodiversity
  • Oxygen Production
  • Increases
  • Water Run Off, pollution, heat, habitat problems
  • (Destruction, Degradation and Fragmentation)

7
Greenhouse Effect and Global Warming
  • What is it?
  • CO2 Keeps heat radiation in - blanket
  • Carbon dioxide is the primary greenhouse gas,
    responsible for 60 of global warming
  • http//www.epa.gov/globalwarming/kids/greenhouse.h
    tml

8
Air pollution
  • breathing problems ? irritation of membranes
  • burning of fossil fuels is the biggest source
  • (smog)
  • Ozone layer is being broken down by CFCs
    (carbofluorocarbons) found in refrigerators and
    air conditioners as coolants this allows
    radiation to reach earth, causing genetic defects
    and cancer

9
Figure 54.27a Erosion of Earths ozone shield
The ozone hole over the Antarctic
10
Biotic and Abiotic Issues of Fragmentation
  • -dfn breaking up a habitat into unconnected
    patches
  • -some organisms need large areas to gather food
  • Ex. Lions
  • Ex. Zebra
  • -no migratory routes to re-establish populations
    lost due to natural disasters
  • -climate change

11
So what do we do????
  • Carefully use both renewable and nonrenewable
    resources sustainable use
  • dfn way of using natural resources at a rate
    that does not deplete them.
  • Reduce, reuse, recycle, replant

12
Find out more
  • Air water U.S. EPA
  • Plants Animals U.S.D.A. Forest Service, NOAA,
    NRCS
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