GHG Inventory tools

Tools useful for undertaking  compliance steps are listed here.

Carbonn (cCR) Guidance

The Carbonn Climate registry has a detailed guides and resources for use when completing the Carbonn worksheets.

You will find details here


City Inventory Reporting and Information System (CIRIS)

The City Inventory Reporting and Information System (CIRIS) is an accessible, easy-to-use and flexible Excel-based tool for managing and reporting city greenhouse gas inventory data. Based on the Global Protocol for Community-scale Greenhouse Gas Emission Inventories (GPC) standard, the tool facilitates transparent calculation and reporting of emissions for all sectors.

CIRIS is free to download and use, and can be directly uploaded to public reporting platforms CDP and Carbonn.

The tool includes five calculators to facilitate calculation of emissions from typically challenging sources:

      • Fugitive losses from gas distribution
      • Solid waste landfill
      • Biological treatment of waste
      • Waste incineration
      • Wastewater

A comprehensive emission factor database is also available to support inventory development. This contains over 2000 emission factors including IPCC default emission factors as well as country and region specific emission factors in a range of different units.

CIRIS has been designed to be compatible with the CURB scenario planning tool. Outputs from CIRIS can easily be uploaded into CURB.


Climate action for URBan sustainability (CURB) scenario planning tool

Climate action for URBan sustainability (CURB) is an interactive scenario planning tool designed specifically to help cities take action on climate change. The user-friendly tool allows cities to:

      • Identify and prioritize low-carbon infrastructure and other greenhouse gas reduction actions;
      • Quickly understand the impact on emissions and financial performance of potential actions;
      • Develop, compare and explore multiple scenarios;
      • Draw on extensive built-in city, national and region-specific data to refine this with city specific data where available.

CURB is being used by cities to explore potential emission reduction targets, support development of city climate action plans, and prioritize investments.


Global Protocol for Community-Scale Greenhouse Gas Emission Inventories (GPC).

Download the Global Protocol for Community-Scale Greenhouse Gas Emission Inventories (GPC)

The GPC provides a robust framework for accounting and reporting city-wide greenhouse gas emissions. It seeks to:

      • Help cities develop a comprehensive and robust greenhouse gas inventory in order to support climate action planning
      • Help cities establish a base year emissions inventory, set reduction targets, and track their performance
      • Ensure consistent and transparent measurement and reporting of greenhouse gas emissions between cities, following internationally recognized greenhouse gas accounting and reporting principles
      • Enable city inventories to be aggregated at subnational and national levels
      • Demonstrate the important role that cities play in tackling climate change, and facilitate insight through benchmarking – and aggregation – of comparable data


Mitigation Goal Standard

Setting Targets can be informed by the Goal Standard guidance.

You can get a  copy by following this link