WHAT'S ALL THE FUSS ABOUT SUSTAINABILITY? Dr. Wade Worthen Biology Department Furman University
sustainability: "a characteristic of a process or state that can be maintained at a certain level indefinitely" - Wikipedia 2007
sustainability: " a characteristic of a process or state that can be maintained at a certain level indefinitely" - Wikipedia In an expanding system, there are always more resources – sustainability is easy
- But in finite, bounded systems, resources will decline and limit the rate of the process UNLESS: - they regenerate fast enough to meet demand
- But in finite, bounded systems, resources will decline and limit the rate of the process UNLESS: - they regenerate fast enough to meet demand - efficiency increases so less is needed
- But in finite, bounded systems, resources will decline and limit the rate of the process UNLESS: - they regenerate fast enough to meet demand - efficiency increases so less is needed - another resource is substituted
sustainability: "a characteristic of a process or state that can be maintained at a certain level indefinitely" - Wikipedia 2007 Human sustainability: "Meeting the needs of the present generation without compromising the ability of future generations to meet their needs." -Brundtland Commission
WHAT'S NOT SUSTAINABLE IN A FINITE, BOUNDED SYSTEM?
Continuous Growth… WHAT'S NOT SUSTAINABLE IN A FINITE, BOUNDED SYSTEM?
WHY IS THIS AN ISSUE NOW?
(NOW being the last 150 years!!!! J. Muir T. Roosevelt A.Leopold R. Carson J. Cousteau)
our population has been growing dramatically… requiring more and more of the planet’s resources
- 1 billion:...to about billion: 1928 (about 78 yrs) - 3 billion: 1960 (about 32 yrs) - 5 billion: 1987 (about 13 yrs) - currently 6.78 billion - adding about 220,000 people a day….today….
- 1 billion:...to about billion: 1928 (about 78 yrs) - 3 billion: 1960 (about 32 yrs) - 5 billion: 1987 (about 13 yrs) - currently 6.78 billion - adding about 220,000 people a day now... and 1/2 are living on less than $2/day... so there is already evidence that we are not "sustaining" our population...
"Growth for the sake of growth is the ideology of the cancer cell." - Edward Abbey
Because of our large population and powerful technologies, we are changing the characteristics of the planet – the only planet – we depend upon for physical and psychological sustenance and inspiration Human domination of the Earth's ecosystems (Vitousek et al. 1997).
Over the last 150 years, more folks are realizing that: We are stressing our life-support systems… There is nowhere else to go… We are all in this together.
ECONOMY SOCIETY ENVIRONMENT Environmental Sustainability... "The term, in its current usage, refers to the potential longevity of vital human ecological life-support systems, such as agriculture, industry, forestry, fisheries, urban, and human communities in general."
ECONOMY SOCIETY ENVIRONMENT "When we try to pick out anything by itself, we find it hitched to everything else in the Universe." - John Muir, My First Summer in the Sierra, 1911
TODAY: - our effects on the natural environment - why that is important - why biodiversity is important to sustainability - what we can do to maintain biodiversity - why we should appreciate biodiversity
Land transformation: Forested Land – U. S.
National Forest | National Park
Land transformation:
Mountaintop removal in West Virginia Humans are a geological force…
Human are affecting 83% of the land surface area of the planet… converting forest to field and field to development
50% of the freshwater:
The Colorado, like the Nile, Yellow, and Rio Grande, doesn’t reach the ocean for months each year. All the water is diverted.
The Aral Sea, Kazakhstan 50% of the freshwater: Water diverted for agriculture in 1960; by 2007, Sea had shrunk by 90%
The Aral Sea, Kazakhstan 50% of the freshwater: - Salinization increased, killing the productive fisheries industry - Agricultural lands – salt increased 6X by 1994 the productivity had dropped by 20-50%.
Marine Fisheries: - Global fish catch is declining by 500,000 metric tons/yr from peak in 1987 (Science, 2003). - Predatory fish (tuna, salmon) and bottom fish (flounder, sole) have decreased by 90%. - Farmed fish are fed fish, so that doesn’t relieve the pressure
2009: We are affecting the climate of the planet: Highest in last 160,000 years…. (Entire history of Homo sapiens)
We are affecting the climate of the planet: All of recent increase in last 200 yrs…
We are affecting the climate of the planet: Plants can’t absorb it all…
We are affecting the climate of the planet: – lowest ever
We are affecting the climate of the planet: - Calving off the Larsen Ice Shelf in 2002; it’s 50 miles long and as big as Rhode Island… - Icebergs calving off Ross Shelf – April 2000 (B15 is 4,280 miles 2 – about the size of CONNECTICUT….)
We are affecting the climate of the planet: And we are a coastal species…
- Changes in Plant Growth: Crops if CO 2 at 550 ppm We are affecting the climate of the planet:
-Changes in Plant Growth: Crops if CO 2 at 550 ppm We are affecting the climate of the planet: And we will grow in just the wrong areas…
Permafrost is defined solely by temperature. Any rock or soil remaining at or below 0°C for two or more years is permafrost. Permafrost can contain 0- 30% ice. We are affecting the climate of the planet: And there may be some nasty non-linearities…
14% of the world’s organic carbon is stored in permafrost. As the poles warm (and they are warming faster than anywhere else), this will thaw. - and when it melts, marshes are created where anaerobic bacteria dominate, breaking the organics into Methane, not CO 2 … and methane is a worse greenhouse gas… This is a type of threshold response (not a gradual response), and would involve positive feedback loops…the warmer it gets, the more permafrost melts, and the warmer it gets… We are affecting the climate of the planet: And there may be some nasty non-linearities… transfer of carbon to atmosphere temp 0 C 0 BURP!
We are affecting the climate of the planet: Things are hotter and drier… In Western U.S., snow pack has declined dramatically, corresponding to a 30%-60% reduction in stream water.
We are affecting the climate of the planet: Things are hotter and drier… In Western U.S., snow pack has declined dramatically, corresponding to a 30%-60% reduction in stream water. Snowmelt begins much earlier; making spring floods and drier summers. Service, Science 303:
We are affecting the climate of the planet: Things are hotter and drier… In Western U.S., snow pack has declined dramatically, corresponding to a 30%-60% reduction in stream water. Snowmelt begins much earlier; making spring floods and drier summers. Service, Science 303: And what might you expect as the land gets hotter and drier??
We are affecting the climate of the planet: More fires… Increase in fire frequency and size over the last 10 years…$3 billion to fight fires in the west, 2X amount ten years ago
We are affecting the climate of the planet: And this will affect other organisms… -Change in Ocean Food Webs: - Phytoplankton have shifted northward in Atlantic with warming of surface waters. -They provide ½ global NPP -They are critical to food webs -Shift north may affect zooplankton and perhaps major fisheries. Richardson and Schoeman, 2004, Science 305:
We are affecting the climate of the planet: And this will affect other organisms… - Adding CO 2 to atmosphere creates carbonic acid in water - Acidification of sea water reduces calcium carbonate production by marine organisms (coccolithophores, corals, molluscs.) Orr, et al., Nature. 437:
Our growth, in our bounded system, is at the cost of other species 40% of primary productivity (E) Madagascar
Our growth, in our bounded system, is at the cost of other species 40% of primary productivity (E) Massive extinction should be no surprise
TODAY: - our effects on the planetary environment - why that is important - why biodiversity is important to sustainability - what we can do to maintain biodiversity - why we should appreciate biodiversity
What do we want for the future?
“I want world peace…”
What do we want for the future? - World Peace - - -
“Democracy is the government of the people, by the people, for the people…”
What do we want for the future? - World Peace - stable, moral governments - -
Woo- hoo!!
What do we want for the future? - World Peace - stable, moral governments - stable, productive economies -
What do we want for the future? - World Peace - stable, moral governments - stable, productive economies - stable, productive food supplies
How can we get there? - A stable, productive food supply Stable, productive economies Stable, productive, moral governments Peace and happiness for our children
How can we get there? stable food supply productive economies Happy people stable, moral governments To achieve ONE goal, we must achieve ALL goals...
Wouldn’t it be nice? I want environmental, economic, and social sustainability to achieve world peace!
It won’t be easy…..
ECONOMY SOCIETY ENVIRONMENT Remember why?
For example… “Save the Amazon rainforest!!!!”
How does Brazil get out from under it's huge international debt?
What to do with the unemployed and urban poor? (22% live on less than $2) Unemployment
Solution - offer them land to settle in the Amazon but there is rampant exploitation - relocate poor to servitude of others
These are incredibly TOUGH, COMPLEX problems.... but they won't just go away if we ignore them...
TODAY: - our effects on the planetary environment - why that is important - why biodiversity is important to sustainability - what we can do to maintain biodiversity - why we should appreciate biodiversity
Why is biodiversity important? The earth is truly a living planet; life changes the conditions of the earth. Releases oxygen to the atmosphere Transfers carbon to the lithosphere Atmosphere Hydro/Lithosphere Biosphere
Why is biodiversity important? The earth is truly a living planet; life changes the conditions of the earth. Releases oxygen to the atmosphere Transfers carbon to the lithosphere Atmosphere Hydro/Lithosphere Biosphere Life: Cleans our water Makes our food Cleans our air
And we are learning that diversity improves ecosystem function
Why is ecosystem function important?
Estimates of various Ecosystem Services - $U.S. trillions Ecosystem services Value (trillion $US) Soil formation17.1 Recreation3.0 Nutrient cycling2.3 Water regulation and supply2.3 Climate regulation (temperature and precipitation) 1.8 Habitat1.4 Flood and storm protection1.1 Food and raw materials production0.8 Genetic resources0.8 Atmospheric gas balance0.7 Pollination0.4 All other services1.6 Total value of ecosystem services33.3 Source: Adapted from R. Costanza et al., “The Value of the World’s Ecosystem Services and Natural Capital,” Nature, Vol. 387 (1997), p. 256, Table 2. TOTAL GLOBAL GNP (1997) = 18 trillion.
Productivity is the energy that an organism absorbs and stores as tissue – as biomass/growth. (And not the energy that the organism spends to move or keep their cells alive…). So, for humans, ecosystem productivity is food.
Biodiversity INCREASES productivity
- Niche Complementarity – different species use different things; more productivity with less competition. - Positive Effects Some species have beneficial effects on others, and so their presence promotes diversity and productivity.
Monoculture They all need the same things at the same concentrations; they compete.
MonoculturePolyculture Combinations of different plants can be planted at higher density, and they use different "niches" and coexist. Even if abundance of "most productive" species drops, this loss can be offset. They all need the same things at the same concentrations; they compete. Niche Complementarity
MonoculturePolyculture Nitrogen fixing legumes (beans) nutrify the soil, increasing the growth of other plants. And you have beans! without beans with beans They all need the same things at the same concentrations; they compete. Positive Effects
Diversity INCREASES productivity Diversity can increase stability
Diversity INCREASES productivity Diversity can increase stability Diverse communities are less susceptible to one particular disturbance (like one species of pest, or fire, or flood), because multiple species are unlikely to be sensitive to the same thing.
We are dependent on the environment for food and resources. Ideally, we would like a STABLE, PRODUCTIVE supply of these resources.... right?? (We don't want "boom and bust", "feast and famine" scenarios....) STABILITY PRODUCTIVITY ????????
We are dependent on the environment for food and resources. Ideally, we would like a STABLE, PRODUCTIVE supply of these resources.... right?? (We don't want "boom and bust", "feast and famine" scenarios....) STABILITY PRODUCTIVITY DIVERSITY …riiight… : )
TODAY: - our effects on the natural environment - why that is important - why biodiversity is important to sustainability - what we can do to maintain biodiversity? - why should we appreciate biodiversity?
So, how do we preserve biodiversity? - Larger areas have more species than small areas
PLANTS HERBIVORES CARNIVORES LARGE AREA OF HABITAT Area Effects So, how do we preserve biodiversity? - Larger areas have more species than small areas
HABITAT FRAGMENTATION So, how do we preserve biodiversity? - Larger areas have more species than small areas
HABITAT FRAGMENTATION Carnivores can’t be supported; competition reduces diversity among herbivores, plants overgrazed. So, how do we preserve biodiversity? - Larger areas have more species than small areas
So, how do we preserve biodiversity? - Larger areas have more species than small areas - Larger areas lose fewer species over time
So, how do we preserve biodiversity? - Larger areas have more species than small areas - Larger areas lose fewer species over time - Larger areas are less susceptible to disturbance
So, how do we preserve biodiversity? - Larger areas have more species than small areas - Larger areas lose fewer species over time - Larger areas are less susceptible to disturbance - Larger areas recover more rapidly after disturbance
So, how do we preserve biodiversity? - Larger areas have more species than small areas - Larger areas lose fewer species over time - Larger areas are less susceptible to disturbance - Larger areas recover more rapidly after disturbance - How large is large?
Bigger than these……
We need to rethink our model of community… Development nature Development
And we need to care…
TODAY: - our effects on the natural environment - why that is important - why biodiversity is important to sustainability - what we can do to maintain biodiversity? - why should we appreciate biodiversity?
nature is important to each person, even at an unconscious level.
Biophilia: We are interested in living things…
Biophilia: There is an adaptive benefit to this interest that has been selected for over hominid evolution…
Evidence for Biophilia in the Humanities - Language A ‘first alphabet’ book….. ‘A’ is for _____________. ‘B’ is for _____________. ‘C’ is for _____________. ‘D’ is for _____________. ‘E’ is for _____________. ‘F’ is for _____________.
Evidence for Biophilia in the Humanities - Language A ‘first alphabet’ book….. ‘A’ is for _____________. - antidisestablishmentarianism?
Evidence for Biophilia in the Humanities - Language A ‘first alphabet’ book….. ‘A’ is for _____________. - antidisestablishmentarianism?
Evidence for Biophilia in the Humanities - Language A ‘first alphabet’ book….. ‘A’ is for _____________. ‘B’ is for _____________. ‘C’ is for _____________. ‘D’ is for _____________. ‘E’ is for _____________. ‘F’ is for _____________.
Evidence for Biophilia in the Humanities - Language Adjectives and similes….. Sly as _________
Evidence for Biophilia in the Humanities - Language Adjectives and similes….. Sly as _________ an Enron executive?
Evidence for Biophilia in the Humanities - Language Adjectives and similes….. Sly as _________
Evidence for Biophilia in the Humanities - Language Adjectives and similes….. busy as __________? Strong as ________ ? Weak as _________ ?
Evidence for Biophilia in the Humanities – Language Verbs: To ‘cow’To ‘quail’ To ‘clam up’To ‘weasel’ To ‘outfox’To ‘hound’ To ‘hog’To ‘grouse’ To ‘fawn’To ‘buffalo’
Evidence for Biophilia in the Humanities – Language Summary – “Human intelligence is bound to the presence of animals. They are the means by which cognition takes shape and they are the instruments for imagining abstract ideas and qualities… they are basic to the development of speech and thought.” -Shepard 1978 Trivial examples or basic, fundamental examples?
Evidence for Biophilia in the Humanities - Religion Animals are central to the myths that give our lives meaning and our culture context. In particular, the serpent figures prominently as an icon of power, knowledge, life, and death. Egyptians – the Earth as an Egg, grasped by a serpent
Evidence for Biophilia in the Humanities - Religion Middle East – Judaism – Eve and the serpent
Evidence for Biophilia in the Humanities - Religion Greeks – Gaia (Earth) was protected by her son, Python, who lived at the center of the world and held it together
Evidence for Biophilia in the Humanities - Religion Australian aboriginal culture – the rainbow serpent – art dates from 6000 years ago
Evidence for Biophilia in the Humanities - Religion Aztecs – Quetzalcoatl, the ‘bird-serpent’ or “feathered serpent”
Evidence for Biophilia in the Humanities – Summary "Animals are far more fundamental to our thinking than we supposed. They are not just a part of the fabric of thought: they are a part of the loom." (Peter Steinhart, 1989). (Native American ouroboric image)
Evidence for Biophilia in the Social Sciences - Sociology Animals are our cultural icons, we use them for tribal affiliation, both trivial…. NFL Football Team Mascots: Cardinals Falcons Ravens Bills PanthersBears Bengals Broncos Lions Colts Jaguars Dolphins Eagles Seahawks Rams 15 of 32 teams (not that it helps….)
Evidence for Biophilia in the Social Sciences - Sociology And significant…
Evidence for Biophilia in the Social Sciences - Psychology - phobias are usually related to natural cues: (snakes, spiders, water, closed spaces, heights) (and other primates that encounter snakes are ophidophobes)
Evidence for Biophilia in the Social Sciences - Psychology - even though cultures have produced more deadly risks
Evidence for Biophilia in the Social Sciences - Psychology -habitat selection – humans with the resources build homes on promontories near water, with a view The Vanderbilt Estate, “The Breakers”, Newport, RI
Evidence for Biophilia in the Social Sciences - Psychology Societies construct gardens, parks, and green spaces in urban environments – like Central Park, NYC.
Evidence for Biophilia in the Social Sciences - Psychology We need nature, and we take it with us into man- made environments; it is a part of what we are, and it has shaped who we are and how we identify ourselves, individually and collectively. Rooftop Garden, TokyoTokyo
Evidence of Biophilia in the Natural Sciences - Physiology - contact with people helps development and healing - contact with animals helps stress and healing, and gives us someone who depends upon us.
Evidence of Biophilia in the Natural Sciences - Physiology - vistas - people with a natural view are less stressed and are more productive. - inner city children with a view of a park are able to concentrate in school and are better learners.
What are the ramifications of biophilia? Humans need nature as a reference to completely express our humanity. It is at once the “other” and the “self”. To lose it, or to simplify it, will profoundly affect what and who we are.
“It is interesting to contemplate an entangled bank, clothed with many plants of many kinds…
“with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth…
“and to reflect that these elaborately constructed forms, so different from each other, and dependent on each other in so complex a manner….
“have all been produced by laws acting around us…There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or one….
“and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved.” Charles Darwin, 1859, “The Origin of Species”
If we recognize the grandeur, we might appreciate it…
If we appreciate it, we might value it…
If we value it, we might sustain it…
If we sustain it, we might be able to sustain our societies and economies, as well. ECONOMY SOCIETY ENVIRONMENT
If we don’t, we won’t…