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Connect the dots between actions and emissions

Focus on policies that matter with the Transition Method, a robust chain of reasoning thatsupports your climate progress by visualizing impacts and emission reduction.


All evidence.
No distractions.

Bottom-up inventories

Improve your planning through real-world data that closely reflects your city's activities

Leading indicators

Say goodbye to data lags and confidently assess progress towards your goals


Database of verified shifts

Apply insights from our extensive library of verified impactful micro transitions

Action Impact Trees

Make confident policy choices by estimating the impact of your actions


Your city's emissions

Widen or narrow your scope to focus on the emissions you have the most influence over.


Baseline city socio-economic activity

Map emissions from the activities in your city with data from its unique physical and socio-economic profile, including its Operations, Emission Factors, Energy Intensities, Cohorts and Target potentials.

Our operations-based methodology enables you to see in a granular way what exactly is responsible for emissions within a specific sector, making it easier to pinpoint where to take action.


Transition Element

In the Transition Method, each socio-economic activity that you map gets linked to a relevant Transition Element.

A Transition Element is a real-world shift that decreases emissions while continuing to meet the needs of citizens and the economy. For instance, commuting is vital to any city, but we can decrease emissions by moving people from cars to public transport, cycling, EVs, or walking etc.

ClimateOS contains an extensive library of Transition Elements, all discrete, universal and organized to fit into one of a city's five economic sectors.

Learn more about Transition Elements icon-arrow 


Primary and proxy indicators

Each Transition Element comes with variables, estimated values and substantiating references. These variables cover primary (or leading) indicators and proxy indicators (when data is unavailable), which enables you to assess your progress in real time.

By using primary indicators, as opposed to lagging indicators such as GHG emissions, you can shorten reporting cycles and adjust your plan faster than ever before.


Behavioral drivers

Behavioral drivers are important parameters such as cost, quality or accessibility. As these shift, you are able to improve the viability and cost-effectiveness of the different Transition Elements.



These are policies, prohibitions, incentives and investments that foster a real-world transition and reduces emissions.

Actions that align with behavioral drivers enable you to coherently and confidently assess the true emissions reduction impact and track performance.

Continue exploring the operating system


An integrated climate platform

Simulate, execute and manage your transition


Transition Guide

Verifiable climate plans in 4 simple steps

Make collaboration easy and pave the way for continuous improvement


Transition Elements

An emergent system simulating your city

Powerful modelling made easy for collaborative decision-making