Why it is high time for the Graham Sustainability Institute to include Population stabilization on its (policy, research) agenda Katta G. Murty IOE Emeritus Professor http:www-personal.umich.edu/ ~ murty/ - PowerPoint PPT Presentation

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Why it is high time for the Graham Sustainability Institute to include Population stabilization on its (policy, research) agenda Katta G. Murty IOE Emeritus Professor http:www-personal.umich.edu/ ~ murty/

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Title: Why it is high time for the Graham Sustainability Institute to include Population stabilization on its (policy, research) agenda Katta G. Murty IOE Emeritus Professor http:www-personal.umich.edu/ ~ murty/


1
Why it is high time for the Graham Sustainability
Institute to include Population stabilization on
its (policy, research) agenda Katta G. Murty IOE
Emeritus Professor httpwww-personal.umich.edu/
murty/
2
  • Did God create this vast Mother Earth
  • all these marvelous living creatures on it
  • for humans to make other creatures extinct
  • and fill the earth to the brim with humans????

3
What is Sustainability
  • Sustainability science of using natural
    resources so they last, remain available, for a
    long time.
  • Refers to life style using sustainable methods,
    making sure we will have Water, materials,
    resources for present future generations.
  • Requires responsible decision making, meeting
    needs of present, not compromising ability of
    future generations meeting their needs. To ensure
    desirable planet for all species now, into
    future.

4
The role of GHG (Green House Gas) emissions
  • IPCC (Intergovernmental Panel on Climate Change)
    concluded from 3 massive studies, that GHG
    emissions from human activities causing climate
    change conditions difficult for society to cope.
  • Sustainability requires meeting present needs
    without degrading natural environment. New threat
    to this from Human greenhouse effect, from forest
    clearing, GHG emissions from burning of fossil
    fuels.

5
Role of population
  • Let I environmental impact (in some units)
    caused by humans
  • P population size
  • A Units of environmental impact by average
    human.
  • Then I P x A (1)
  • A depends on lifestyle and technology used for
    that lifestyle, can be reduced by improving
    technology in use.
  • All research effort today focused only on
    reducing A, totally ignoring P.

6
Effects on ecosystems from present population
  • Making food for current 7 billion population
    heavy toll on earth's resources, uses 40 land
    surface, moving many sea creatures closer to
    extinction.
  • Edward Osborne Wilson, Harvard entomologist
    Pulitzer Prize Winner (natural heir to Darwin)
    breaks ground for construction of a big castle in
    England, to pay tribute to species made extinct
    by humans.

7
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8
  • Millennium ecosystems assessment by International
    panel of 1000 biologists says Of 24 ecosystems,
    only 4 stable, 15 in serious decline, 5 in
    precarious condition. Present human activities
    having significant negative impact on
    biodiversity of world ecosystems. Major cause
    habitat loss from human appropriation of land.
  • Indicates humans already living beyond carrying
    capacity of Mother Earth.

9
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10
Situation Analysis, Population projections
  • Already water shortages in many countries. Even
    Brazil, containing world's largest river, Amazon,
    has severe water shortages.
  • Entire Middle East survives on desalinated water,
    making which leads to enormous GHG emissions.
    Even USA has desalination plants, so does India.
  • Projections by UN Population division say even
    with stringent actions by world govts.,
    population will reach 9 billion by 2050, between
    10 to 12 billion by 2100 (Science 10 Oct 14 PP
    234-237) .

11
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12
Consequences
  • High correlation bet. population growth
    environmental degradation. As population , to
    provide basic essentials for these people local
    ecosystems .
  • From eq. (1), we see that GHG emissions control
    not possible by making technology super efficient
    alone because reductions from efficient
    technology not enough to offset increases
    necessary to serve growing population.

13
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14
Population growth global problem
  • US birth rate presently below replacement level,
    but US population from illegal immigration
    from south of border. Given human ingenuity, Very
    hard to stop illegal immigration.
  • So population growth global problem, has to be
    tackled globally.
  • Most countries look to US for leadership. So if
    US adopts population stabilization as our
    national policy, good chance other countries will
    follow. China already had this.

15
Population stabilization in mission statement
  • Name sustainability concerns specification of
    actions by present generation, making sure to not
    diminish prospects of future generations enjoying
    comfortable lifestyle.
  • For all these reasons, with your name Graham
    Sustainability Institute, it is high time to
    include population stabilization in your mission,
    planning and research agenda.

16
What can we do?
  • Need your help in contacting key people in US
    Govt. to get Population Stabilization as our
    National policy

17
Great New Research Opportunities
  • So far, we have always had Economic growth, and
    consequent job growth. We became accustomed to
    economic growth, and always envy countries with
    high economic growth.
  • Part of the present economic growth comes from
    population growth.
  • As population stabilizes, we cannot take economic
    growth, job growth, for granted. A new research
    topic is the study of how world can adopt to the
    conditions under a stable population.
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