Open national and local carbon accounts would be a website to provide the whole picture of CO2 emissions data from personal, through local and national to international in an open & accessible way. At present the data is scarcely visible in spite of widespread concern over climate change. Aim would be open reuse, re 'Free our data'. More at http://sca21.wikia.com/wiki/Open_national_and_local_carbon_accounts

Thanks to all who contributed to our wide ranging discussion at the we20 Nesta challenge event. After considering a range of options to take the plan forward it seems best to focus on one key aspect, which is something like making a clear simple and compelling case for

Everyone who can help being able to help ... for which we need the data

which will enable us to gather support toward a positive outcome in time for the Copenhagen (UNFCCC) conference in November

With national and local carbon budgets likely to be announced or hinted at in the near future, perhaps a campaign to get Participatory carbon budgeting would be a more effective way to realise the aims of this plan? More on PCB on SCA wiki http://sca21.wikia.com/wiki/Participatory_carbon_budgeting