Sources
UN Framework Convention on Climate Change (UNFCCC) Secretariat (see: http://unfccc.int).
United Nations, Department of Economic and Social Affairs, Population Division, World Population Prospects: The 2008 Revision, New York, 2009 (advanced Excel tables).
Definitions & Technical notes:
CH4 emissions: the
major sources of CH4 are leakages during
the production and transportation of natural gas and coal mining,
livestock rearing, rice cultivation, and decomposition of waste
in landfills.
N2O emissions: the
major sources of N2O are agriculture and
industrial processes.
CH4 emissions per capita and N2O emissions per capita are calculated by UNSD.
Data Quality:
UNFCCC has developed standardised methods for calculating greenhouse gas emissions, which are widely used. However, estimation of emissions from sources other than energy are complex. So while trend figures are fairly good, absolute levels are less reliable.
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