Greenhouse gas (GHG) emissions in Scope 3 category 1, related to indirect procurement, and category 2 (capital goods) measurements are based on spend data and industry average emission factors. Greenhouse gas (GHG) emissions in Scope 3 category 6 (business travel) measurements include an extrapolation for travel spend in the minority of cases where travel has not been booked through agency partners. Greenhouse gas (GHG) emissions in Scope 3 category 7 (employee commuting) measurements are uncertain because of a lack of data on office occupancy, particularly in 2021 in light of the Covid-19 pandemic.