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Biofuel
Biofuel is any fuel that derives from biomass - recently living organisms
or their metabolic byproducts, such as manure from cows. It is a renewable
energy
, unlike natural resources such as petroleum, coal and nuclear fuels.

Typically biofuel is burned to release its stored chemical energy. Research
into more efficient ...
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Bionics
Bionics (also known as Biomimetics, Biognosis or Biomimicry, a short form
of Biomechanics - from the Greek word "bios" - pronounced "vios" -
which means life, and the word mechanics) is the application of methods and
systems found in nature to the study and design of engineering systems and
modern technolo ...
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Biosphere
The biosphere is that part of a planet earth's outer shell-including air,
land, and water-within which life occurs, and which biotic processes in turn
alter or transform. From the broadest geophysiological point of view, the biosphere
is the global ecological system integrating all living beings and their relationship ...
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Complexity, Problem Solving, and Sustainable Societies
Complexity, Problem Solving, and Sustainable Societies is an extremely influential

It focuses on the energy cost of problem solving, and the energy-complexity
relation in manmade systems. This is a mirror of the negentr ...
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Environmental Economics
Environmental economics is a subfield of economics concerned with environmental
issues (other usages of the term are not uncommon). In using standard methods
of economics, it is distinguished from green economics which subsumes the nonstandard
approaches to environmental problems, environmental science/environmental studies,
...
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Fair Trade
Fair trade products shown at XI Unctad.The fair trade movement promotes the
use of labour, environmental and social standards for commodities, particularly
those exported from Third World and Second World to the First world. Employment
and commercial law both proposed and in practice varies widely, from prohibition
of goods m ...
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Gaia Philosophy
Gaia philosophy (named after Gaia, the Greek goddess of the Earth) is a broadly
inclusive term for related concepts that living organisms on a planet will
affect the nature of their environment – to make it more suitable for
life. This set of theories holds that all organisms on a planet regulate the
...
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Gaia Theory
Gaia theory is a class of scientific models of the biosphere in which life fosters and maintains suitable conditions for itself by affecting Earth's environment. The first such theory was created by the English atmospheric scientist, James Lovelock, who developed his theories in the 1960s before formally publishing the ...
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Sustainable Development
Sustainable development is 'development that meets the needs of the present
without compromising the ability of future generations to meet their own needs',
according to Our Common Future, a 1987 report from the UN. One of the factors
which sustainable development must overcome is environmental degradati ...
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Threats to Biodiversity
During the last century, erosion of biodiversity has been increasingly observed.
Estimates of extinction rates are controversial, ranging from from very low
to upwards of 200 species a day, but all scientists acknowledge that the rate
of species loss is greater now than at any time in human history, with ...
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Twelve Leverage Points
The twelve leverage points to intervene in a system were proposed by Donella
Meadows.

Meadows worked in the field of systems analysis and proposed a scale of places
to intervene in a system. To the degree that the observer is within the system,
or "part of it", awareness and manipulati ...
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