Sources:
UNSD Millennium Development Goals Indicators database (see http://mdgs.un.org/unsd/mdg/Data.aspx).
UNSD Demographic Yearbook.
Footnotes:
- For Denmark, the data cover the mainland of Denmark, Faeroe Islands and Greenland, except for GDP data which are not available for Faeroe Islands and Greenland.
- Users will note differences in the emissions data reported in our latest update for this country compared to data reported previously. Changes since 2001 are due to the addition of import estimates for gas-diesel oil in the underlying United Nations energy statistics database.
- Users will note differences in the emissions data reported in our latest update for this country compared to data reported previously. Changes are due to revisions to the natural gas liquids data in the underlying United Nations energy statistics database.
- Users will note differences in the emissions data reported in our latest update for this country compared to data reported previously. Changes since 1997 are due to the addition of import estimates for gas-diesel oil and motor gasoline in the underlying UN energy statistics database.
Definitions & Technical notes:
CO2 emission sources include emissions from energy industry, from transport, from fuel combustion in industry, services, households, etc. and industrial processes, such as the production of cement.
Changes in how land is used can also result in the emission of CO2, or in the removal of CO2 from the atmosphere. However, as there is not yet an agreed method for estimating this, it is not included in the figures for CO2 emissions.
Burning of biomass such as wood and straw also emits CO2; however, unless there has been a change in land use, it is considered that CO2 emitted from biomass is removed from the air by new growth, and therefore it should not included in the total for CO2.
CO2 emissions per km2 is calculated by UNSD.
Data Quality:
For Annex 1 countries, data originally come from UNFCCC. UNFCCC has developed standardised methods for calculating CO2 emissions, which are widely used. For non-Annex 1 countries, data are from estimates of CO2 emissions made by the Carbon Dioxide Information Analysis Center (CDIAC) (see: http://cdiac.ornl.gov/). CDIAC acquires or compiles, quality assures, documents, archives, and distributes data and other information concerning carbon dioxide.
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