← on nowLGR-128 · v0.1.0 · model · estimate if you washed your hair one time fewer a week: what it is worth, in numbers
if you washed your hair one time fewer a week · one person, one year · world average · order of magnitude
2 000 → 2 billion litres of water about 2,000 litres of water and about 25 kilograms of co2e a year.
method per-person, per-year estimate from the cited study (EPA WaterSense; DEFRA factors), world-average where the study allows; the million-people column is straight multiplication. 'for scale' divides by 0.8 t CO2e, the meat-free yardstick.
live. this is the channel itself. embed it anywhere:
<iframe src="https://thetoll.earth/?channel=if%20you%20washed%20your%20hair%20one%20time%20fewer%20a%20week" width="100%" height="520" style="border:1px solid #D9DDDB" title="the toll · if you washed your hair one time fewer a week"></iframe>
or the whole broadcast, every channel, the same for everyone:
<iframe src="https://thetoll.earth/?embed=1" width="100%" height="520" style="border:1px solid #D9DDDB" title="the toll · on now, everywhere"></iframe>
how this number is built
- method
- per-person, per-year estimate from the cited study (EPA WaterSense; DEFRA factors), world-average where the study allows; the million-people column is straight multiplication. 'for scale' divides by 0.8 t CO2e, the meat-free yardstick.
- range
- roughly ±50%: households, grids and countries differ widely
- confidence
- estimate
- weakness
- a world-average person. your number depends on where you live and how you already live; the country layer will narrow it. the ranking between actions is far more robust than any single figure.
- dispute
- dispute LGR-128 · corrections are credited
- data
- channels.json (sign-in) · full entry · CC BY 4.0