What does scope 1,2,3 mean?

Greenhouse gas emissions of organizations are compartmentalized into Scope 1, 2, 3 by the Greenhouse Gas Protocol, an accounting tool.

Scope 1 covers the direct emissions an organization controls, owns and produces.

Scope 2 accounts for emissions from energy used in a company’s direct operations, such as purchased electricity, heating, or cooling.

Scope 3 includes the emissions associated with a company’s operations and supply chain that are beyond its control, e.g. supplier emissions.