Carbon Budget Tracker
How much carbon can
a company still emit?
An open-access, science-based platform that takes global carbon budgets and works out each company's share — then shows whether they're on track under different scenarios and methods.
Explore Company AnalysisThe Problem
Companies make climate promises
Thousands of companies set net zero targets. But how do we know if they're on track — or just greenwashing?
Existing tools miss what matters
Most tools assess targets, not performance. Almost none focus on cumulative emissions — the actual driver of warming. And existing tools are either too simple or black boxes.
Context is ignored
A coal company in India and one in Australia face very different responsibilities. Current tools often treat them identically.
The Key Insight
It's not about targets — it's about the total
The climate responds to cumulative emissions over time, not whether a company hits a target in any single year. Two companies can have the same 2030 target but very different total emissions — and very different climate impacts.
Point-in-time assessment
Checks: "Will the company hit its target year goal?"
Both companies meet the same 2030 target — but that hides the full picture.
Cumulative budget assessment
Asks: "How much total CO₂ has the company emitted over time?"
Company A's cumulative emissions exceed the budget years earlier than Company B.
Our Solution
The Carbon Budget Tracker
An open-access, science-based platform that takes global carbon budgets — the total CO₂ humanity can emit to limit warming to 1.5°C, 2°C, or beyond — and translates them into company-level budgets. It then shows whether companies are on track under different scenarios and methods.
Open & transparent
All methods, code and data are freely available. Anyone can see exactly how we reach our conclusions.
Context-sensitive
Companies are assessed against pathways that reflect their national context, capabilities and historical responsibility.
Structured pluralism
Multiple legitimate methods shown side-by-side — with guardrails to prevent cherry-picking.
Who Uses It & Why
Companies
Benchmark performance against science-based budgets and understand where they stand relative to peers.
Investors
Identify which companies are genuinely decarbonising vs greenwashing before allocating capital.
Litigators
Peer-reviewed frameworks to assess corporate climate responsibility in court.
Regulators
Independent tools to verify corporate climate disclosure claims.
Civil Society
Transparent, accessible data to hold companies publicly accountable.
Ready to explore?
Select a company, choose your scenarios, and see how their carbon budget stacks up under different methods and assumptions.
Explore Company Analysis