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 Draft Budget 2018/19, published on 14th December 2017. Although the methodology underpinning the Carbon Assessment of the Draft Budget remains the same as for the Carbon Assessment of the 2017-18 Draft Budget, the base year of Environmental Input-Output (EIO) model itself has been updated from 2010 to 2013. This is possible because of the newly available input-output analytical tables covering the year 2013 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 2013 v1.00. This model is based on the Scottish Government Input-Output tables 2013 (published in July 2017), ONS Input-Output Analytical Tables 2013 (Blue Book 2016 consistent), ONS Environmental Accounts GHG emissions by industrial sector for 2013 (published in July 2017) and HM Treasury deflators (published on 22 November 2017).
Since the Model is applied to 2018/19 Draft Budget spending plans, the GHG effects are in 2018/19 prices.