The Scottish Government Input-Output model has an environmental extension that makes it possible to estimate Greenhouse Gas Emission effects. These were last updated for the High Level Carbon Assessment of the Scottish Budget 2019/20, published on 12th December 2018. Although the methodology underpinning the Carbon Assessment of the Draft Budget remains the same as for the Carbon Assessment of the 2018-19 Draft Budget, the base year of Environmental Input-Output (EIO) model itself has been updated from 2013 to 2014. This is possible because of the newly available Input-Output Analytical Tables covering the year 2014 for the UK. As usual the model has also been updated to use the latest available Greenhouse Gas emissions ratios and HM Treasury deflators. For more information about the methodology used please see the GHG estimation methodology page.
The GHG effects published here detail the estimated direct and indirect greenhouse gas emissions (expressed in tonnes of carbon dioxide equivalent) as a result of £1m final use from each of the 98 Input-Output industry categories. These are derived from the Scottish Government Environmental Input-Output Model 2014 v1.00. This model is based on the Scottish Government Input-Output tables 2014 (published in July 2018), ONS Input-Output Analytical Tables 2014 (Blue Book 2017 consistent), ONS Environmental Accounts GHG emissions by industrial sector for 2014 (published in July 2018) and HM Treasury deflators (published on 29 October 2018).
Since the Model is applied to 2019/20 Scottish Budget spending plans, the GHG effects are in 2019/20 prices.