Generic carbonate consumption
The category at /business/processes/carbonates/generic provides a methodology based upon assumptions relating to the typical national mix of carbonate minerals which are consumed in industry (85% limestone, 15% dolomite) as well as the purity of these minerals. This methodology represents the Tier 1 and 2 approaches described by the IPCC Guidelines for National Greenhouse Gas Inventories (NGGIP).
Specific carbonate consumption
The category /business/processes/carbonates/specific provides a methodology based on specific quantities of various carbonate species, and represents the Tier 3 approach described by the IPCC Guidelines for National Greenhouse Gas Inventories (NGGIP).