Question 1

What emissions factors do you use?

Accepted Answer

DEFRA per-passenger-kilometre factors, with separate values for short-haul, long-haul, premium cabins and radiative forcing.

Question 2

Does this include radiative forcing?

Accepted Answer

Yes — we apply a 1.9× multiplier to flights as recommended by DEFRA, which captures non-CO₂ warming effects at altitude.

Question 3

Is ground transport included?

Accepted Answer

Yes — we estimate transfers from arrival airport to venue using DEFRA factors for car/coach travel.

Question 4

How can we reduce the footprint?

Accepted Answer

Pick a hub closer to the team's centre of gravity (use Optimal Location Finder), choose direct flights, prefer rail for short legs, and offset the residual via a credible Gold Standard provider.

Question 5

Should we offset the trip?

Accepted Answer

Yes, as the last step — never the first. Reducing emissions through routing decisions is more impactful than offsetting.

Question 6

Do you recommend offset providers?

Accepted Answer

We recommend Gold Standard or Verra-certified portfolios. Avoid avoidance-only credits and unverified reforestation.

Question 7

Can I include this in our ESG report?

Accepted Answer

Yes — submit your email to receive the full methodology PDF you can cite.

Question 8

What's a 'good' per-person footprint for an offsite?

Accepted Answer

European intra-EU offsites typically land at 0.6–1.4 t CO₂e per person. Trans-Atlantic flights push this to 2.5–4 t.

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