For more information, refer to www.unep-wcmc.org, www.carbon-biodiversity. For more information, refer to www.carbon-biodiversity.net/interactive/carboncalculatornotes. This is a customised ArcGIS 9.3.1 toolbox and provides GIS users with a series of raster analysis tools to help identify, map and understand the spatial relationship between ecosystem carbon stocks, other ecosystem services, biodiversity, land-use and pressures on natural resources. The resolution of the analysis can be defined by the user.