Net Zero Calculator — Formule
## How to Plan for Net Zero
Net zero means reducing emissions as much as possible and offsetting the remainder.
### Formula
**Residual Emissions = Current * (1 - Annual Reduction %)^Years**
**Offsets Needed = Residual Emissions**
The Science Based Targets initiative requires at least 90% absolute reduction before relying on offsets for net zero. Remaining emissions must be neutralized through high-quality carbon removal.
Net zero means reducing emissions as much as possible and offsetting the remainder.
### Formula
**Residual Emissions = Current * (1 - Annual Reduction %)^Years**
**Offsets Needed = Residual Emissions**
The Science Based Targets initiative requires at least 90% absolute reduction before relying on offsets for net zero. Remaining emissions must be neutralized through high-quality carbon removal.
Exemple Résolu
A company emitting 1,000 tons CO2e reduces 7% annually over 10 years with $30/ton offsets.
- Residual: 1,000 * (1 - 0.07)^10 = 1,000 * 0.484 = 484 metric tons
- Total reduced: 1,000 - 484 = 516 metric tons
- Offsets needed: 484 metric tons/year
- Offset cost: 484 * $30 = $14,520/year