If yes, which methodology was used?

The GHG Protocol methodology is a globally recognized framework for measuring and managing greenhouse gas (GHG) emissions. It provides standards, guidance, and tools for organizations to quantify their direct and indirect emissions across three scopes—Scope 1 (direct emissions), Scope 2 (indirect emissions from purchased energy), and Scope 3 (all other indirect emissions). ISO 14064 is an international standard providing principles and requirements for quantifying and reporting greenhouse gas (GHG) emissions and removals at the organizational level. It supports organizations in managing their GHG impacts through standardized measurement, reporting, and verification.