Use the free Global Calculator tool.

Read our report showing what the Calculator tells us about climate change and international development.

A prosperous world for everyone in 2050

The Global Calculator is a free and interactive tool that helps you to understand the link between our lifestyles, the energy we use, and the consequences for our climate. It is aimed at anyone interested in exploring what a low-carbon world could look like in 2050. The Calculator shows that it is possible to prevent dangerous climate change and ensure people's living standards continue to improve if we act now.

Access the Global Calculator

Insights from the Calculator: read our report

The Global Calculator shows that as lifestyles continue to improve while still tackling climate change, we must transform the technologies and fuels we use, and make smarter use of our limited land resources. The report Prosperous living for the world in 2050 (PDF 1.43MB) uses evidence from the tool to show what we need to achieve.

  •’s really helpful to be able to look at impacts and balances between the drivers in the tool to think about how we face the future.  Mott MacDonald  Mott MacDonald  
  • With crucial climate talks due in Paris later this year, this Calculator demonstrates to our political leaders that a cleaner, safer and fairer future is possible. Friends of the Earth Friends of the Earth
  • The Global Calculator will help people understand the broad range of activities that can reduce the risk of dangerous climate change. Helen Mountford, Programme Director, New Climate Economy 

What we found

Want to dig deeper into the data?

The Global Calculator is the most open-source model of the world's energy system ever built. You can download the full Excel model to explore all the assumptions used and methodology used. You can even make your own version to test out your ideas.

Access the spreadsheet ›