About us

The website

This website was launched in 2007 to give unbiased information on climate change, carbon dioxide and other greenhouse gas emissions, and how to become independent of fossil fuels. The calculator is constructed according to the best information available, and will be updated as new information becomes available.

The stance on this website is that of a policy scientist, i.e. where the aim is to work towards a robust evidence-based consensus of reasonable people on any policy question, where the starting point is an open mind and impartiality, using scientific methods and agreed principles of policy making, as a contribution to society's decision making process.


The main author is Ian Campbell (iancampbell.co.uk).



Competing interests: No financial interest in this area

Twitter: @Ian_Campbell_


Thanks are due to Margaret, Helen, Debbie, Peter, Carol, Geraldine, Clive, Andrew, Patrick, Ann, Gen and John for feedback on earlier versions of the calculator, and to many others for feedback on the calculator and information pages.

Contact us

Comments on any aspect of this website are welcome.

The aim is to give a fair summary of the evidence, and give unbiased conclusions. If we have omitted important considerations, or not given them due weight, please let us know.



Copyright information

Flooded telephone box: The Flood! Catcliffe Fire Brigade rescuers: Copyright Mark Lomas www.flickr.com/photos/outallnight/
Dry river bed: Matt & Kim Rudge www.flickr.com/photos/mattandkim/94501076/in/datetaken/
Evidence of the severity of the drought in Kenya - this was marked on the map as a river.
Wind turbines: Stuart Yeates www.flickr.com/photos/stuartyeates/93821358/in/datetaken/
Boys biking, silhouette: Copyright Karl Hutchinson: www.flickr.com/photos/whateverthing/

Images and tables from academic and government publications etc
Some images etc have been reproduced on the website, and permission has been assumed on the basis that

Charts by carbonindependent.org
Any chart produced by carbonindependent.org can be copied without restriction.

First published Feb 2007
Last updated: 17 Oct 2022