A Carbon Audit measures and records the carbon dioxide (CO2) emissions of an organization. It is the first step in developing a Carbon Strategy to manage and reduce emissions over the long term. Reasons to do a Carbon Audit include addressing global warming, meeting government targets, saving energy costs, and improving brand reputation. The audit calculates core emissions from power usage and transportation as well as wider emissions from waste, materials, and employee commuting. Organizations can then select options like offsets, funding, or trading to reduce emissions and work towards creating a carbon-conscious culture.