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The Subsidiary Body for Scientific and Technological Advice (SBSTA) regularly undertakes work on methodological and scientific matters as they relate to the Convention and the Kyoto Protocol process.  Some of the issues the SBSTA is currently dealing with are land use, land-use change and forestry (LULUCF); bunker fuels; and research and systematic observation.


Reducing emissions from deforestation and forest degradation in developing countries (REDD)
This web portal aims to facilitate access by developing countries to information made available by Parties, relevant organizations and stakeholders in a number of areas related to reducing emissions from deforestation and forest degradation in developing countries.


Land Use, Land-Use Change and Forestry (LULUCF)
The UNFCCC defines “sink” as “any process, activity or mechanism which removes a greenhouse gas, an aerosol or a precursor of a greenhouse gas from the atmosphere”. The development of policy on “sinks” has evolved to cover emissions and removals of greenhouse gases resulting from direct human-induced land use, land-use change and forestry (LULUCF) activities and thus, the acronym LULUCF is now used to refer to this sector.

Image Emissions Resulting from Fuel Used for International Transportation: Aviation and Marine "Bunker Fuels"
In accordance with the IPCC Guidelines for the preparation of greenhouse gas (GHG) inventories and the UNFCCC reporting guidelines on annual inventories, emissions from international aviation and maritime transportation (also known as international bunker fuel emissions) should be calculated as part of the national GHG inventories of Parties, but should be excluded from national totals and reported separately. These emissions are not subject to the limitation and reduction commitments of Annex I Parties under the Convention and the Kyoto Protocol.

Research and Systematic Observation
The Convention calls on Parties to promote and cooperate in research and systematic observation of the climate system, including through support to existing international programmes and networks (see Articles 4.1(g) and 5). In doing so, the Convention commits Parties to cooperate to improve the capacities of developing countries to participate in research and systematic observation. “Research and Systematic Observation” has regularly been an agenda item of the SBSTA since its seventeenth session.


Other Methodological Issues
This section includes information about interactions with the ozone layer; the Brazilian proposal; single projects; review of methodological work; Third Assessment Report of the IPCC; and links to sources of data on greenhouse gas emissions and to socio-economic data and tools.

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