Interactive lab · Runs 100% in your browser

Count the carbon you can’t see.

Answer twelve honest questions about how you move, power your home, eat and shop. A live dashboard redraws your yearly footprint with every tap — compared with the world and the Paris fair share, then turned into a green-tech game plan.

  • ~90 seconds, no signup
  • Real factors from DEFRA, IEA & OWID
  • Nothing leaves your browser

Tune your life. Watch the number move.

No “calculate” button, no waiting — every slider redraws your climate pulse in real time. The defaults describe a fairly typical Western lifestyle; dial in yours.

Getting around the daily commute question

120 km/week
60 km/week
2 return trips/year
0 return trips/year

Each long-haul return ≈ 1.6 tCO2e — the heaviest single habit on this page.

Home & energy where the kilowatts live

People sharing your home
2
250 kWh/month
Your grid mix

What you eat the quiet giant

Your plate, most weeks
Food that ends up in the bin

Stuff & habits the embodied part

How much new stuff lands in your home?
Recycling, honestly

Everything happens on this page — no accounts, no tracking, no uploads.

Where you stand

The average human emits about 4.7 tonnes a year. The average American, 14.5. A fair share of the 1.5 °C budget is closer to 2. Drag your inputs and find your rung on that ladder — your bar is the animated one.

You0 t
Paris fair-share 20302.0 t
World average4.7 t
European Union6.8 t
China8.0 t
United States14.5 t

0.0Earths

…if everyone lived like you. Humanity currently uses about 1.7 — the sustainable line is one.

Per-person CO2e per year. Country figures: Our World in Data (2023, rounded). “Fair share”: 1.5 °C-consistent pathways halving emissions by 2030.

Your green-tech game plan

Ranked live by tonnes saved and matched to the tech on this site — from HelioGrid solar to TerraSense AI thermostats. Do one, or do them all; the strip below keeps score.

Today
—
Tomorrow
—
— saved per year if you did it all

The point of the number

Small dials. Big difference.

A footprint is just a mirror — the useful part is what you do next. Half the world’s cuts this decade come from proven tech you met on this site: sun, silicon, steel that recycles itself. Go see it working, then come back and move a slider.

2 t per person per year — the 1.5 °C fair share by 2030
30% of the world’s electricity already came from renewables in 2023
17M electric cars sold worldwide in 2024 alone