The requirement for a CDP assessment is unique to each individual or business. Organisations and cities around the world are encouraged to conduct CDP assessments as part of the CDP (formerly known as the Carbon Disclosure Project) global initiative, disclosing how they are having an impact on the environment, which includes their greenhouse gas (GHG) emissions. CDP assessments are an important tool for businesses and cities, allowing them to understand their GHG emissions, setting targets and actioning these to reduce their emissions, moving towards more sustainable practices for the future.