Lecture3Ethics - Lecture 3 The Ethics of Sustainability...

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1 Lecture 3 The Ethics of Sustainability Charles J. Kibert University of Florida
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2 Overview The challenges and an approach The impacts of human activity Sustainability as a response The ethical context Construction industry as an example Ten ethical principles for sustainability Closure
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3 The Challenges and an Approach Twin horns of our dilemma: population and consumption growth Dwindling energy, materials, and potable water resources Global poverty, malnutrition, disease Conflicts: resources, religious A path forward: sustainability
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4 Humanity’s Global Impacts Rainforest loss: 1 acre per second Annual temperate forest loss: 10 million acres/yr Loss of 50% of all forests in the last 1,000 years Grain production: 465 MT (1987) 206 MT (2005) Loss of 24 billion tons of topsoil annually Fisheries: 100 MT (1987) 84 MT (2005) Humankind moves more material than natural forces(2x) Climate Change
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5 Progress? “… the results of human activity are putting such a strain on the natural functions of Earth that the ability of the planet’s ecosystems to sustain future generations can no longer be taken for granted.” Millennium Ecosystem Assessment Board Statement, 2005 Source: M Lynas. High Tide: News from a warming world
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6 Florida +5meter, very likely unavoidable. Expected sea level increase 21 st Century: + 1.2 meter Courtesy: PBS
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08/27/11 Resource Consumption Patterns
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08/27/11 Hubbert’s Pimple - Oil Consumption
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12 Oil Crisis 1974
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15 The challenge of North America: Toronto and … and…
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17 Analysis paralysis
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18 Ecological Footprint of Construction Buildings General: 30% of U.S. energy 40% of materials Store 90% of all extracted materials New Construction: 6 lb/ft 2 Renovation: 70 lb/ft 2 Land, water, and air emissions Lighting: 20% of U.S. electrical energy
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19 Use of Materials
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20 There is much regional variation in operating energy use, only partly related to climate
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21 Sustainability Meeting the needs of the present without compromising the ability of future generations to meet their needs (Our Common Future 1987) Non-declining human well-being over time (David Pearce, London School of Economics) Balancing people’s needs, economic development, and the health of natural systems
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22 Ethical Context Sustainability: Meeting the needs of the present without compromising the ability of future generations to meet their needs Immediately calling for needs to be met, present and future, addresses morality The foundation of sustainability is ethics , not ecology, not economics, not social science The issue is how do we make decisions today The challenge is to define ethical principles that underpin sustainability , a complete set that covers all potential decisions.
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23 Green Buildings as an Ethical Response Buildings and associated travel dominate the
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Lecture3Ethics - Lecture 3 The Ethics of Sustainability...

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