Carbon Budget Remaining Calculator — Formula
## The Global Carbon Budget
The carbon budget is the total amount of CO2 that can still be emitted while keeping global warming below a specific temperature target.
### Formula
**Remaining Budget = Total Budget - (Annual Emissions x Years Elapsed)**
**Years Left = Remaining Budget / Annual Emissions**
The IPCC estimates that for a 50% chance of staying below 1.5°C, the remaining budget from 2020 was about 500 Gt CO2. At current rates of ~40 Gt/year, this budget is rapidly shrinking.
The carbon budget is the total amount of CO2 that can still be emitted while keeping global warming below a specific temperature target.
### Formula
**Remaining Budget = Total Budget - (Annual Emissions x Years Elapsed)**
**Years Left = Remaining Budget / Annual Emissions**
The IPCC estimates that for a 50% chance of staying below 1.5°C, the remaining budget from 2020 was about 500 Gt CO2. At current rates of ~40 Gt/year, this budget is rapidly shrinking.
Esempio Risolto
Starting budget of 500 Gt CO2 from 2020 with 40 Gt/year emissions, 6 years later.
- CO2 used = 40 x 6 = 240 Gt CO2
- Remaining = 500 - 240 = 260 Gt CO2
- Years left = 260 / 40 = 6.5 years
- Budget used = 240 / 500 x 100 = 48.0%