BIOETHANOL GREENHOUSE GAS CALCULATOR - HGCA

32continued supply depends, in many cases, on proper management (e.g. tree biomass,fresh water, fish).Second Assessment Report, or SAR is a published by the IPCC in 1995 the SARprovided a comprehensive overview of the state of knowledge on climate change atthat time. It contains the widely cited statement ‘the balance of evidence suggests thatthere is a discernible human influence on global climate’. The IPCC’s ThirdAssessment Report was finalised in 2001 (see below).Sequestration is an uptake of carbon dioxide from the atmosphere by plants and itssubsequent storage as biomass.Semi-natural Vegetation is any type of vegetation that has been influenced byhuman activities, either directly or indirectly.Sinks (UNFCCC Definition) are any process or activity or mechanism which removesa greenhouse gas or a precursor from the atmosphere.Sulphur Dioxide or SO 2 is a colourless gas with a pungent odour, irritates the upperrespiratory tract in humans and leads to acidic deposition/acid rain. Originates fromboth anthropogenic (human) and natural sources and has been identified as one of theprincipal precursors to fine particulate matter. The main anthropogenic sources arefrom combustion in transportation, industry and the electric power generation sectors,whereas emissions from natural sources are mainly from volcanoes, marine bacteriaand wetlands.Sustainability is the ability of an ecosystem to maintain ecological processes andfunctions, biodiversity, and productivity over time. Also a term used by governmentsto describe the efficient use of the earth's resources to ensure there will be adequateresources to support the economy and maintain a healthy environment for futuregenerations to come.Sustainable Development is a Development that meets the needs of the presentwithout compromising the ability of future generations to meet their own needs(World Commission on Environment and Development - the BrundtlandCommission). Development is essential to satisfy human needs and improve thequality of human life. At the same time, development must be based on the efficientand environmentally responsible use of all of society's natural, human, and economicresources.Sustainable Transportation is an integrating economic, social and environmentalconsiderations into decisions affecting transportation activity. A sustainabletransportation system is one that is safe, efficient and environmentally responsible.System Boundary is a LCA term referring to then bounds set on a study in terms ofwhat processes and activities will be analysed as part of the study. For example, in astudy of a particular building all major materials may be within the system boundary,while minor material and worker travel may be excluded from the study and thereforeleft outside the system boundary. It is important to understand where people have settheir system boundaries when comparing different LCA data.Third Assessment Report, or IPCC TAR is the third in a series of AssessmentReports prepared by the Intergovernmental Panel on Climate Change which reviewthe existing scientific literature on the subject, finalized in 2001. It contains threemain sections: Science; Impacts, Adaptation and Vulnerability; and Mitigation. Itincludes a 50- 80 page Synthesis Report, which will draw upon the three main