The Greenhouse Gas Protocol (GHG Protocol) is an initiative established by the World Resources Institute and the World Business Council for Sustainable Development in 1998. The Protocol arose out of a need for standardised corporate GHG accounting in the late 1990s following the establishment of the United Nations Framework Convention on Climate Change . The GHG Protocol now administers the most widely used global GHG accounting standards.

Standards within the Protocol include (linked below):

To accompany individual standards, the GHG Protocol has also established several guidance notes, which support the consistent application of standards including:

Calculation tools can also be accessed on the GHG Protocol website.

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