Section C. Scotland's GHG Account for assessing progress against statutory targets
A full reporting of the figures, required by the statutory requirements of Climate Change (Scotland) Act 2009, is available in Annex A which accompanies this publication.
In December 2017 the Committee on Climate Change (CCC) provided advice on the future measurement and accounting of emissions against Scotland's climate change targets.
The CCC used the term "GHG Account" to refer to their recommended manner of accounting for emissions, which is intended to better separate the impacts on targets of scientific and methodological improvements to the GHG inventory, from those of 'on-the-ground' policy actions. The Climate Change (Emissions ReductionTargets) (Scotland) Act 2019 requires that Scottish Ministers follow the CCC's most recent advice on the method to be used for reporting on target outcomes, which currently means the GHG Account method set out here.
At the heart of this method is the freezing of inventory methods (the scientific methods used for the measurement and estimation of emissions levels) between the time that target levels are set (or reviewed through independent advice from the CCC) and the time when target outcomes come to be reported. To ensure that the inventory methods used for the purpose of reporting target outcomes do not become too far separated from the best science and evidence, the base inventory will be re-aligned to the most up to date inventory methods at least every 5 years.
2020 GHG Account Calculation
In accordance with advice from the Committee on Climate Change, the calendar year 2016 (for which emissions data was first published in June 2018) has been selected as the base inventory for reporting progress to the 2020 interim target.
|Year||Baseline Period (1)||2016||2017||2018||2019||2020|
|A. Base Inventory source emissions data (June 2018 data (1990-2016))||75.7||38.6||N/A||N/A||N/A||N/A|
|B. June 2019 source emissions data (1990-2017 inventory)||76.3||41.9||40.5||N/A||N/A||N/A|
|C. June 2020 source emissions data (1990-2018 inventory)||76.3||42.0||41.0||41.6||N/A||N/A|
|D. June 2021 source emissions data (1990-2019 inventory)||85.1||48.5||47.5||48.9||47.8||N/A|
|E. June 2022 source emissions data (1990-2020 inventory)||81.6||46.2||45.3||46.5||45.4||40.0|
|Revisions between inventories (2)|
|between A and B||0.6||3.3||3.3||3.3||3.3||3.3|
|between B and C||0.0||0.1||0.5||0.5||0.5||0.5|
|between C and D||8.8||6.5||6.5||7.3||7.3||7.3|
|between D and E||-3.5||-2.3||-2.2||-2.4||-2.4||-2.4|
|Combined revision between successive inventories||5.9||7.6||8.1||8.6||8.7||8.7|
|GHG Account (latest inventory, less combined revision)||75.7||38.6||37.2||37.8||36.7||31.3|
|GHG Account figures, expressed as a percentage reduction from the baseline period.||0.0%||-49.0%||-50.9%||-50.0%||-51.5%||-58.7%|
1. The Baseline period uses a 1995 base-year for F-Gas emissions, and 1990 for all other greenhouse gases.
2. Where data do not exist for a particular year, revisions are carried over from the previous complete year (see shaded cells)
Under the Climate Change (Emissions Reduction Targets) (Scotland) Act 2019, targets are set for the years from 2018 onwards. A full list of these target levels is available on the Scottish Government website (https://www.gov.scot/policies/climate-change/reducing-emissions/), with the 2020 interim target being a 56.0 per cent reduction from baseline levels.
Table C1 shows a 58.7 per cent reduction from baseline levels in 2020. As a result, the statutory emissions reduction target for 2020 has been achieved.
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