Stop burning fossil fuels: Stay within the IPCC CO2 budget of 50 tonnes per person

The IPCC has estimated the limit on further burning of fossil fuel that would give us confidence of keeping global warming to 1.5 deg C.

This remaining carbon budget is 400 billion tonnes CO2.

This is equal to a lifetime budget from Jan 2020 of 50 tonnes CO2 per person on the planet.

Other sources

The Tyndall Climate Centre in Manchester has published an online tool for generating a carbon budget report for each local authority in the UK [4]. It can also generate aggregate budgets for groups of local authorities, such as Liverpool city Region [5].


This web page is based on a 2015 analysis by Anna Marie Byrne.


[1]IPCC (Aug 2021) AR6 Climate Change 2021: The Physical Science Basis
[2] IPCC SR15 Report p108 (p16 of chapter 2)
[4]The Tyndall Carbon Budget Tool

First published: Dec 2019
Last updated: 2 Oct 2021