A greenhouse gas (GHG) inventory is a quantification of the greenhouse gas emissions you produce. Standardized protocols have been created to be used in creating verifiable GHG inventories, which should be updated yearly to track changes in operations and measure improvements. Greenhouse Gas emissions are categorized into three ‘scopes’ based on World Resources Institute standards that have been adopted by the Climate Registry and the Carbon Disclosure Project. Scope 1 emissions are onsite emissions, usually associated with onsite energy production, the burning of natural gas, or the use of vehicles. Scope 2 emissions are the associated with purchased energy, usually electricity. Scope 3 emissions are a broad category that includes all other indirect emissions, such as employee commutes, waste, air travel, supply chain, and life cycle emissions of purchased goods. Reporting Scope 3 emissions is optional, but these emissions can be a large percentage of your footprint. Understanding your Scope 3 emissions is a crucial step towards corporate stewardship Using Climate Registry and ICLEI protocols as well as industry standard and custom tools developed by EcoShift, our climate change consultants perform a comprehensive greenhouse gas (GHG) inventory, or carbon footprint, providing a snapshot of impacts of business operations and creating baseline data needed to demonstrate reductions. Our greenhouse gas accounting process is transparent and verifiable, enabling efficient auditing and effective planning. Read more on our service page, or in our Community and Local Government Greenhouse Gas Emissions Inventory Fact Sheet.