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Information on Data Sources

The GHG data displayed on the UNFCCC website are data from official submissions of GHG emissions/removals data by countries that are Parties to the Climate Change Convention. Data displayed on the data interface are "as received" from Parties. The publication of Party submissions on this website does not imply the expression of any opinion whatsoever on the part of the UNFCCC or the Secretariat of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries as may be referred to in any of the submissions.

The original version of the data as submitted by Parties are available on the UNFCCC website at the following links:

• For Annex I Parties, the latest submissions of GHG data can be found here
• For non-Annex I Parties, the sources of GHG data are the national communications and the biennial update reports; the list of submitted communications can be found here, and the list of submitted biennial update reports can be found here

The UNFCCC data interface also contains data on population and gross domestic product (GDP). These data are displayed on the GHG data interface with kind permission of the United Nations and the World Bank, which are the primary sources of these data. They have certain policies in place concerning the use of their data and these organizations must be consulted before downloading population and GDP data for further use.

• For population data, the source is the UNSD Demographic Statistics accessible through the Common Database of the United Nations.
• For GDP data (at market prices, constant 2010 US$), the primary source is the World Bank.

Sources and availability of GHG data for Annex I Parties

Note: Data availability for CO₂, CH₄, N₂O is meant in this table; data availability for HFCs, PFCs and SF₆ varies considerably from Party to Party.

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Sources and availability of GHG data for non-Annex I Parties

Note: NCI = initial national communication; NC2 = second national communication; NC3 = third national communication; NC4 = fourth national communication; INV = separate GHG inventory; BUR1 = first biennial update report; BUR2 = second biennial update report. The "–" symbol indicates that data are not available, because either the initial national communication is not yet available, or GHG data from the national communication have not yet been processed and included in the database, or the national communication does not contain GHG data.
^a Data are considered as available if data on CO₂ emissions without LUCF are available; the availability of data on other GHGs may be different.
^bThe GHG inventory submitted by Sierra Leone for the period 1990-1995 appears to contain technical errors, esp., for the Agriculture and LUCF Sectors. Therefore, this inventory is currently not included in the data interface

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