CO₂CARBON / TALLY
PERSONAL STUDY / 01ESTIMATE · NOT AUDITED

make the assumption visible

Count what
you can change.

A simple activity ledger for seeing which everyday inputs make up the estimate — before reaching for a perfect number.

THIS STUDY12.9kg CO₂e
demonstrative estimate
ACTIVITY LEDGER3 entries
01Motorbike commuteTravel · default factor 0.093.8 kg
02Grid electricityHome · default factor 0.427.6 kg
03Rice mealFood · default factor 0.381.5 kg

ADD ONE ASSUMPTION

Put another line
on the paper.