Sources And Sinks: Emission And Absorption
Of Greenhouse Gas, A Case Study In Italy
Author(s)
N. Marchettini, F. M. Pulselli & E. Tiezzi
Abstract
The biosphere is a closed thermodynamic system: it receives an enormous flux
of energy from outside while the exchange of matter with the outside is
practically negligible. Life on Earth is continuously assured by this flux of
energy from the Sun (source), as well as by the capacity of dissipating heat in the
outer spaces (sink), as efficiently formalized by the entropic model by Harold
Morowitz. This makes life possible and is the reason why large changes induced
artificially by man in periods that are brief on the scale of biological time are so
dangerous. For this reason it is important to develop methods able to detect how
much human activity affects the natural flow of energy from the source to the
sink. Nowadays one of the points of major debate in international issues is the
problem of the greenhouse effect and related climate change, as well as the main
cause of the problem: massive fuel consumption.
This paper presents the results of a Greenhouse Gas Inventory, calculated for
the complex territorial system of the province of Siena (central Italy) according
to the Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories.
It is a method of assigning the responsibility of greenhouse gas emissions at local
level and it suggests how to improve public policies in terms of resources and
land use by the comparison of emissions and natural absorption of equivalent
CO2. The paper also emphasizes how the diversities in terms of environmental
characteristics, urban areas management and economic propensities within a
territory can be a good model to follow towards sustainable development.
Keywords: thermodynamics; solar energy; greenhouse gas inventory;
sustainable development.
Keywords
thermodynamics; solar energy; greenhouse gas inventory;
sustainable development.
Related Book
Other papers in this volume
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