Emission Reporting IPCC Guidelines Printer-friendly version
Introduction
Strategic Response
GHG Protocol
ISO 14064
IPCC Guidelines
Global Reporting Initiative
Industry Mechanisms
Country Initiatives
Basic Calculators
Critical Asian Trends
Regional Data Trends
Sector Data Trends
Quantitative Data Trends
CDP FAQ


  

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The 2006 IPCC Guidelines for National Greenhouse Gas Inventories (2006 IPCC Guidelines) are the recommended scientific guidance for the United Nations Framework Convention on Climate Change (UNFCCC) and the Kyoto Protocol. They were published by the Intergovernmental Panel on Climate Change (IPCC) in five volumes and provide methodologies for estimating national inventories of anthropogenic emissions by sources and removals by sinks of greenhouse gases.

  • The availability of a number of differing "tiers" of calculation methods
    For various categories of emission sources, there are several ways of calculating the emissions, described as tiers (e.g. Tier 1, Tier 2, Tier 3), and each tier has an associated increasing level of detail and accuracy.
  • The encouragement of the use of specific emission factors or data
    To evaluate GHG emissions, "default emission factors" are provided for many different fuels and activities. These default emission factors are considered to be less accurate than country- specific and, in turn, process-specific factors. Reporters are encouraged to use emission factors and data specific to a country10 or, better yet, an industry or technology.
  • A focus on the prioritization of effort
    The IPCC suggests that the most effort on quantifying emissions should be spent on those sources that are the most critical — i.e. those that make up the largest quantity, are responsible for the greatest increase or decrease or have associated with them the highest level of uncertainty.

Although comprehensive and rigorous, the IPCC Guidelines maintain a flexible approach to GHG calculation procedures. The prioritization of emission sources of greatest importance is also emphasized. In prioritizing the work, these guidelines recognize that the more specific the emission factor or methodology (in terms of geography, facility or process), the better the emission estimate will be.

The International Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories
http://www.ipcc.ch/
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