Four quarters, the same indicators every year. The commuting kilometres we didn't drive, the documents we didn't print and the business travel we actually took, subtracted from the balance. Internal estimates, with the calculation method at the foot of the page.
The sum of the closed quarters. Quarters still running contribute nothing: no projections, no early estimates.
Home-to-office kilometres that were never driven.
Commuting and paper avoided, less the emissions of the travel actually taken.
Quotes, contracts and invoices issued and archived without printing.
Kilometres genuinely travelled for clients, by train and by car.
Partial figure: closed quarters only.
Each quarter on a shared scale, in kg CO₂e. Above the line what we didn't produce, below it what we produced by travelling. The difference is the net balance.
The same indicators for every quarter, so that two different years stay comparable.
An ordinary quarter. Two client visits, one by train and one by car to a site with no rail connection.
More documents than the previous quarter, all digital. A better train-to-car ratio on the longer trips.
In progress. Figures are published when the quarter closes.
Not started yet.
Three formulas and three factors. Nothing here is instrument-measured: these are internal operational counts multiplied by public emission factors. Anyone can redo the arithmetic.
people × worked days × round-trip km × car factor The reference trip is the one we'd make with premises between Monza and Milan, counted for each person in the studio.
digital documents × A4-sheet factor One document counts as one equivalent sheet: a prudent simplification, since real contracts run to several pages.
(train km × train factor) + (car km × car factor) Subtracted in full from the saving. The net balance always carries our own travel.
The boundary is deliberately narrow: we count only what we have direct evidence for. The rest is declared, not estimated.
If something doesn't add up, or you think a factor should be corrected, write to us: corrections go into the next edition, with the date.
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