Global Climate Change and Ozone Layer Protection

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Glossary of terms and abbreviations
A AAU: Assigned Amounts Units Tradable units, equal to one metric ton of CO2 – equivalent, calculated based on an Annex B country’s Assigned Amount.
A Adaptability The degree to which adjustments are possible in practices, processes or structures of systems to projected or actual changes of climate. Adaptation can be spontaneous or planned and can be carried out in response to or in anticipation of changes (UNEP/WMO)
A Adaptation Adaptation refers to the adjustments, whether passive, reactive or anticipatory, that are proposed as a means of ameliorating the anticipated adverse consequences associated with climate change (thus reducing vulnerability). Adaptation to the (expected) negative impacts of climate change generally takes place in two ways: anticipatory (before impacts take place) and reactive (as a response to initial impacts). In natural systems adaptation is reactive by definition. In human systems, adaptation can be both anticipatory and reactive and can be implemented by public and private actors (IPCC 2001).
A Adaptive Capacity The ability of people and systems to adjust to climate change, for example, by individual or collective coping strategies for the reduction and mitigation or risks or by changes in practices, processes or structures of systems. It cannot be easily measured but is related to general levels of sustainable development (ADB 2003).
A Forestation The direct human-induced conversion of land that has not been forested for a period of at least 50 years, to forested land, through planting, seeding and/or the human-induced promotion of natural seed sources.
A Annex B Countries Those developed countries and economies in transition, listed in Annex B to the Kyoto Protocol, which have agreed to achieve emission reduction targets by the Commitment Period, 2008-2012. The targets will become legally binding upon ratification of the Kyoto Protocol.
A Annex I Countries Those developed countries and economies in transition listed in Annex I of the UNFCCC, which have agreed to non-binding commitments to reduce their GHG emissions to 1990 levels by the year 2000.
A Assigned Amount The amount of GHG emissions that Annex B countries may emit during the Commitment Period, 2008-2012. The ‘Assigned Amount’ of each Annex B country is calculated as the percentage of the Annex B party’s aggregate CO2 - equivalent GHG emissions multiplied by 5, i.e. for the five years between 2008-12.
B Baseline The scenario that reasonably represents the anthropogenic emissions by sources of greenhouse gases that would occur in the absence of the proposed project activity.
C Carbon Cycle The term used to describe the exchange of carbon (in its various forms - such as carbon dioxide) between the atmosphere, ocean, terrestrial biosphere and geological deposits.
C Clean Development Mechanism – CDM The mechanism established under Article 12 of the Kyoto Protocol.
C CDM Executive Board An independent governance body established under Article 12 of the Kyoto Protocol to oversee the implementation and administration of the CDM.
C CER: Certified Emission Reduction CER Units issued for emission reductions generated by CDM project activities. One unit is equal to one metric ton of CO2 – equivalent.
C Commitment Period The period between 2008-2012, during which Annex B countries must achieve their respective emission reduction targets, and not exceed their Assigned Amounts.
C COP: Conference of the Parties COP The COP is comprised of countries that have ratified or acceded to the UNFCCC. The COP is the supreme governing body of the UNFCCC.
C COP/MOP The COP/MOP is comprised of Parties to the UNFCCC who are also Parties to the Kyoto Protocol.
E EB: Executive board EB The CDM Executive Board supervises the CDM, under the authority and guidance of the COP/MOP, and is fully accountable to the COP/MOP
G GCCC: Government Committee on Climate Change The purpose of the Government Committee on Climate Change (GCCC) is to advise the Sub-directorate for Climate Change and Ozone Layer Protection on matters relating to national responsibilities with respect to climate change, and in particular, in relation to the UN Framework Convention on Climate Change (UNFCCC) and the Kyoto Protocol.
G Global Warming Potential GWP is an index defined as the cumulative radioactive forcing between the present and some chosen time horizon caused by a unit mass of gas emitted now, expressed relative to a reference gas such as CO2, as is used here. GWP is an attempt to provide a simple measure of the relative radioactive effects of different greenhouse gases
G Greenhouse Effect Energy coming from the sun passes through the atmosphere and warms the earth – but the emitted infra-red radiation coming from the earth’s surface is partly absorbed by gases in the atmosphere and some of it is re-emitted downwards – further warming the surface of the earth and the lower levels of the atmosphere. This effect has been called the ‘greenhouse effect’ because of a similar effect caused by glass in a greenhouse: it lets sunlight into the greenhouse but in turn traps a portion of infra-red radiation (heat) inside the greenhouse.
G GHG: Greenhouse gases Gases that trap heat when released into the atmosphere, including carbon dioxide (CO2), methane (CH4), nitrous oxide (N20), hydro fluorocarbons (HFCs), per fluorocarbons (PFCs) and sulphur hexafluoride (SF6).
I IPCC Intergovernmental Panel on Climate Change – this was established by the World Meteorological Society and UNEP to assess scientific, technical and socio-economic information relevant for the understanding of climate change, its potential impacts and options for adaptation and mitigation.
J JI: Joint Implementation Mechanism The mechanism established under Article 6 of the Kyoto Protocol. Projects carried out among Annex 1 parties.
K Kyoto Protocol A Protocol to the UNFCCC signed at the third session of the COP, establishing binding Annex I GHG emission reduction targets of 5.2% below 1990 levels by 2008-2012. For the Kyoto Protocol to enter into force, 55 parties representing 55% of industrial nations’ GHG emissions must ratify it.
L LULUCF Land-use, land-use change and forestation
M Marrakech Accords At its seventh session held in Marrakech, the Conference of the Parties (COP) of the Kyoto Protocol adopted modalities and procedures for a clean development mechanism which are commonly referred to as the Marrakech Accords (see annex to decision 17/CP.7, doc. FCCC/CP/2001/13/Add.2)
M Montreal Protocol The Montreal Protocol on Substances that Deplete the Ozone Layer was agreed on 16 September 1987 in Montreal. It came into force on 1st January 1989 – by which time 29 countries and the EEC representing approximately 82% of the world consumption, had ratified it. Since then, several other countries have joined.
N NCCC: National Committee for Climate Change The NCC provides advice to and consults with the Minister of Environmental Affairs and Tourism, through the Director General of DEAT&T, on matters relating to national responsibilities with respect to climate change – and particular in relation to the United Nations Framework Convention on Climate Change (UNFCCC) and the Kyoto Protocol.
N National Communication A document that all parties to the UNFCCC are obliged to submit to the COP of the UNFCCC. Under articles 4.1 and 12.1 of the UNFCCC it must contain information on: “emissions by sources and removals by sinks of all greenhouse gases not controlled by the Montreal Protocol (greenhouse gas inventories); national or, where appropriate, regional programmes containing measures to mitigate, and to facilitate adequate adaptation to climate change (general description of steps taken or envisaged by the Party to implement the Convention); and any other information that the Party considers relevant to the achievement of the objective of the Convention.”
O ODS Ozone Depleting Substances
O ODA: Official Development Assistance (ODA) Official bilateral government assistance annually disbursed by developed countries to developing countries.
P PCF: Prototype Carbon Fund World Bank’s Prototype Carbon Fund.
R Radioactive Forcing Radioactive forcing is the change in the balance between radiation coming into the atmosphere and radiation going out. A positive radioactive forcing tends on average to warm the surface of the earth; negative forcing tends on average to cool the surface
R Reforestation The direct human-induced conversion of non-forested land to forested land through planting, seeding and/or the human-induced promotion of natural seed sources, on land that was forested but that has been converted to non-forested land. In terms of the CDM, for the first commitment period, reforestation activities will be limited to reforestation occurring on those lands that did not contain forest on 31 December 1989.
S Sequestration Removal of carbon from the atmosphere by carbon ‘sinks’, such as forests.
U UNFCCC United Nations Framework Convention on Climate Change signed at the ‘Earth Summit’ in Rio de Janeiro in May 1992.
V Vienna Convention The Convention for the Protection of the Ozone Layer was agreed in Vienna in 1985. This is framework convention within which countries agree to take “appropriate measures…to protect human health and the environment against adverse effects resulting or likely to result from human activities which modify or are likely to modify the ozone layer”. The main thrust of the Convention was to encourage research, cooperation between countries and exchange of information.
V Vulnerability Vulnerability can be defined as the “degree to which a system is susceptible to, or unable to cope with, adverse effects of climate change, including climate variability and extremes.
V V&A Vulnerability and Adaptation (see separate definitions above)
Did You Know?

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