Answer a few questions. Decarb calculates your estimated footprint across eight emission categories and delivers a PDF report with your highest-impact reduction actions — ranked by verified emission factors from the IPCC, IEA, and EPA. Not guesswork. Not generic advice.
The average personal footprint is 7–12 tons CO₂e per year. Without accurate measurement, effort concentrates on low-impact actions while the highest-impact sources go unaddressed. Decarb gives you the data to focus where it counts.
Answer a few questions about your energy use, transport, diet, and purchases. We apply verified emission factors to calculate your total estimated footprint in tons CO₂e.
Your report shows estimated emissions by category, ranked by impact. No generic advice — only what is relevant to your specific profile and lifestyle.
A structured action plan with prioritised steps, ranked by tons CO₂e saved. Focus on what moves the number most — not what feels good.
Every Decarb calculation produces a structured PDF report — not a score, not a grade. A data-driven breakdown you can act on.
Broken down across eight categories: flights, transport, energy, food, waste, goods, and financed emissions.
Your result compared against national and global averages, and the 1.5°C pathway target.
Every action is quantified in tons CO₂e saved. The highest-impact changes appear first.
Every emission factor and assumption documented. Transparent by default.
Our calculations use emission factors from the IPCC, IEA, and national greenhouse gas inventories. We distinguish estimates from verified data, and we document every assumption we make.
We will not tell you you are carbon neutral. We will tell you where you stand — and what to do about it.
“Precision without transparency is not credibility. We show our work.”
Primary source for global warming potential values and emission factors.
Electricity grid emission factors by country and energy mix data.
Country-level emission factors for transport, food, and consumption.
Consumption-based emission factors for goods and services.
Decarb gives access to certified offset projects verified by UNFCCC CERs and Verra VCS standards. Offsetting complements reduction — it does not replace it.