Sunday, November 25, 2012

Exercise6: exploring

The Anthropocene Project
http://www.hkw.de 


 
In a two-year project, HKW will explore the hypothesis’ manifold
implications for the sciences and arts.
 
 

Our notion of nature is now out of date. Humanity forms nature. This
is the core premise of the Anthropocene thesis, announcing a paradigm
shift in the natural sciences as well as providing new models for
culture, politics, and everyday life. 
 
 
 
 
If the opposition between humanity and nature is now suspended, how do
we change our perspectives and perception? Is it still possible to
think in concepts like “artificial” and “natural?” What does it mean
for our anthropocentric understanding and our future if nature is
man-made? What impact does the notion of global changes has on
political decision-making? Which image of humanity appears if nature
is shaped by mankind?
 
 
 
The Anthropocene: A man-made world 
 
Erle Ellis, an ecologist at the University of MD Baltimore County, on the Antropocene. Courtesy of The Economist.
 
 
 
http://www.youtube.com/watch?feature=player_embedded&v=ABZjlfhN0EQ

 
 
 
 
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The Earth system is our planet's interacting physical, chemical, and biological processes. It  consists of the land, oceans, atmosphere and poles. It includes the planet´s natural cycles — the carbon, water, nitrogen, phosphorus, sulphur and other cycles. Every living thing affects its surroundings. But humanity is now influencing every aspect of the Earth as excessive as never before. We’re changing the way water moves around the globe as never before. Almost all the planet’s ecosystems bear the marks of our presence.
A growing number of scientists think we’ve entered a new geological epoch that needs a new name – the Anthropocene.
Probably the best-known aspect of our newfound influence is what we’re doing to the climate. Atmospheric carbon dioxide may be at its highest level in 15 million years. But this is just one part of the story; we’re changing the planet in countless ways. Nutrients from fertilizer wash off fields and down rivers, creating stretches of sea where nothing grows except vast algal blooms; deforestation means vast quantities of soil are being eroded and swept away. Rich grasslands are turning to desert; ancient ice formations are melting away; species everywhere are vanishing.
These developments are all connected, and there’s a risk of irreversible dramatic changes leading us into a future that’s extremly different from anything we knew from before. Slowly we are creating a hotter, stormier and less diverse planet.
The first modern humans appeared in African 200,000 years ago. Agriculture bound people to the land, leading to permanent settlements. Settlements grew into villages, and then into cities, countries and empires. People domesticated plants and animals, breeding them to make them more productive and inventing new tools to help plant and harvest crops. Ever-increasing areas of wild land came under human control. Forests were cut down, grasslands ploughed up and rivers diverted for irrigation.
Over the past two centuries the human population and the economic wealth of the world have grown rapidly. These two factors increased the level of consuption. This we can see in agriculture and food production, forestry, industrial development, energy production and urbanisation. All of the aproximately seven million people on earth share basic human needs: water, food, shelter, good health and employment. The ways in which these needs come together are critical factors of the environmental consequences. In the developed world, wealth, and more importantly the demand for a broad range of goods and services is placing significant demands on global resources.

 Between 1970 and 1997, the global consumption of energy increased by 84%, and consumption of materials also increased dramatically.





Over the past three centuries, the amount of land used for agriculture has increased dramatically. Furthermore, large areas of land area have been lost to degradation, due, for example, to soil erosion, chemical contamination and salinisation.




Arguments for a new epoch, the Anthropocene, by http://www.igbp.net include:

  • In the last 150 years humankind has exhausted 40% of the known oil reserves that took several hundred million years to generate
  • Nearly 50% of the land surface has been transformed by direct human action, with significant consequences for biodiversity, nutrient cycling, soil structure, soil biology, and climate

  • More nitrogen is now fixed synthetically for fertilisers and through fossil fuel combustion than is fixed naturally in all terrestrial ecosystems

  • More than half of all accessible freshwater is appropriated for human purposes, and underground water resources are being depleted rapidly in many areas




                                                             Photograph by Henry Fair
Moving Mountains
Kayford Mountain, West Virginia
As oil companies drill deeper for offshore oil, mining companies work 24/7 to level Appalachian peaks for coal, which supplies half of U.S. electricity. This summit vanished in a day. Some 470 have been erased since the 1980s; the waste often buries streams. Mountaintop removal recovers just 6 percent of a coal deposit.

                                                      Photograph by Edward Burtynsky
Industrial Farming
Almería Province, Spain
On the arid plains of southern Spain, produce is grown under the world's largest array of greenhouses and trucked north. Greenhouses use water and nutrients efficiently and produce all year—tomatoes in winter, for instance. But globally the challenge is grain and meat, not tomatoes. It takes 38 percent of Earth's ice-free surface to feed seven billion people today, and two billion more are expected by 2050.


                                                          Photograph by Pablo Lopez Luz
Urban Supersprawl
Mexico City, Mexico
Some 20 million people live in Mexico City, the world's fifth largest metropolitan area. In 1800 the urban fraction of the global population was 3 percent. Today it is 50 percent and rising. In crowded shantytowns, the need for clean water and sanitation is urgent. But urbanization has an upside: Per capita, cities use less energy and pollute less than rural areas.

 
 
 

Arcticfrontiers

www.arcticfrontiers.com 
 
 

 WATER

http://p2pfoundation.net/Water_Commons
 
 
http://ourwatercommons.org/
 
 

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