2.1
As a young organisation ESS has evolved significantly since the baseline for annual emissions was established and the first phase of the Sustainability Plan was published. We have grown our headcount by 26%, increased our office capacity while also sharing space efficiently with Consumer Scotland, another non-ministerial office, and completed a range of investigations and analytical reports to carry out our statutory functions.
2.3
Regarding our Sustainability Plan, we have made significant progress against the actions and ambitions set out in Phase 1. We completed the majority of actions due by the end of the 2024/25 financial year, as summarised in paragraphs 2.8 to 2.24.
2.3
Our carbon emissions reported for 2023/24 were calculated at 12.584 tCO2e (tonnes of carbon dioxide equivalent).

Figure 2 – indication of emission types and reporting responsibilities
2.4
It should be noted that the emissions we report are currently limited to certain Scope 3[2] categories, as our landlord reports all emissions related to use of the office.
2.5
A breakdown of the reported emissions by categories is set out below.
Category |
2023/24 Current tCO2e |
2020/21 Baseline tCO2e |
Car (all forms) |
0.520 |
5.442 |
Bus |
0.748 |
1.076 |
Rail and tram |
1.566 |
0.598 |
Flights |
0.699 |
2.310 |
Homeworking |
8.070 |
n/a[3] |
Well-to-tank |
0.777 |
n/a[4] |
Hotel stay |
0.204 |
0.000 |
Total |
12.584 |
9.426 |
2.6
We continue to celebrate and learn from our successes, while being aware of areas to focus on and aspects of our planning where we need to increase our ambitions. We are remaining alert to the trends in our carbon emissions, and as demonstrated in Table 1, we are seeing year-on-year increases compared to our 2020/21 baseline of 9.426 tCO2
2.7
While the increase in emissions directly relates to an increase in staff during this period, subsequent homeworking emissions, and the voluntary inclusion of well-to-tank (WTT)[5] emissions, we have nevertheless reflected on these challenges and addressed them in the development of Phase 2.
Influence and impact
2.8
As a small public body, the way in which we can have the most positive impact on environmental outcomes is through our role scrutinising compliance with, and the effectiveness of, environmental law. Over the course of Phase 1 of the Plan, we have done this by:
- investigating environmental concerns such as spreading of sewage sludge to permitted planning policies to development of the Scottish Government’s Climate Change Plan
- using ESS’ statutory powers, such as improvement reports, to make recommendations to the Scottish Government regarding air quality and climate change duties
- carrying out detailed data, policy, and scientific analysis in ESS’ priority areas, including soil health, marine litter and sewage discharge, to inform our recommendations made to public bodies in Scotland
- responding to consultations to positively influence environmental policy and law, such as marine nature restoration to circular economy
- proactively engaging and involving our stakeholders, through initiatives like our community engagement programme or through public calls for evidence
2.9
An example of our impact and influence can be seen in our investigation into the effectiveness of the systems in place to support local authorities fulfil their climate change duties.
The issue and why it matters
Public bodies in Scotland have a range of climate change duties which aim to contribute to the delivery of net zero.
ESS received a representation concerning the support and scrutiny provided by Scottish Ministers as to how local authorities contribute to meeting climate change targets. Local authorities contribute the largest share of public sector total reported emissions. Therefore, it is important that local authorities receive adequate support and scrutiny when fulfilling their climate change duties if Scotland is to achieve net zero.
The Law
Scottish Ministers and public bodies compliance with, and the effectiveness of, the Climate Change (Scotland) Act 2009
What did ESS do?
ESS launched an investigation into the effectiveness of the systems in place to support local authorities in their contribution to the delivery of climate change targets. We concluded that there were significant structural weaknesses in respect of the delivery of climate change targets, the support that is available to local authorities to this end and the reporting and monitoring of performance. We were able to reach an informal resolution with Scottish Ministers on all recommendations in our investigation apart from the one that recommended making all reporting of Scope 3 emissions mandatory for local authorities. Scope 3 emissions form the largest proportion of local authorities’ emissions and include emissions from wider supply chains, use of local authority services, contracted out services and investments. Although local authorities are currently expected to report on their scope 3 emissions, very few do and therefore we are unable to get a true picture of the extent of their total emissions.
ESS used its statutory powers and laid an improvement report before the Scottish Parliament requiring Scottish Ministers respond to this recommendation by way of an improvement plan.
The outcome
As a result of ESS’ intervention:
-
- local authorities will be required to produce climate change plans setting out how they intend to deliver their climate change responsibilities
- the Scottish Government will produce new statutory guidance for all public bodies in support of their responsibilities in this area
- the Scottish Government has taken measures to develop the methodologies required to calculate Scope 3 emissions which ESS expects to see implemented by local authorities
- enhanced monitoring will take place to ensure compliance with the changes
- By publishing our investigatory and analytical work on the ESS website and social media, we are not only being transparent and accountable ourselves but increasing public awareness of environmental issues and holding Scottish authorities to account publicly.
Office-based emissions
2.11
All our office electricity, gas, water, and waste consumption are calculated and reported by our landlord, SLAB. This is therefore not included in our own emissions calculations to avoid double-counting, however we have still taken steps to reduce office-based emissions over the course of Phase 1.
2.12
In early 2024 we moved into a larger space on the fifth floor of Thistle House to accommodate our growing staff, but also to increase opportunities for efficiencies, both financial and sustainable, by sharing with Consumer Scotland. Part of this involved the retrofit of the office space, and we worked with both SLAB and Consumer Scotland to include sustainability considerations throughout this process.
2.13
Sharing this office space has also allowed us to maximise office occupancy, so that any office-based emissions such as heating and water are being used in the most efficient and resourceful way. We also do this by encouraging regular all-team office days.
2.14
We also encourage sustainable practices within the office, by working with SLAB to make sustainability the easy option (for example, by providing more recycling bins) and by engaging staff in training and best practice.
Working practices and staff engagement
2.15
While we do not have responsibility for reporting our office-based emissions, due to our hybrid-working model, a large proportion of our total emissions comes from homeworking. The figure reported for homeworking is a fixed number of 0.33378 kg CO2e/FTE working hours, however we can still take steps to influence our staff and encourage sustainable ways of working whether in the office or at home.
2.16
We do this by providing relevant training materials, both through the induction and via regular sustainability updates and supporting environmental volunteering opportunities. We have six members of staff who are certified Carbon Literate, including the Chief Executive, and a team of Sustainability Champions, including a Board Champion, who share their learning with the wider team where applicable.
2.17
We have also implemented a mandatory sustainability objective as part of our staff performance appraisal process. This ensures that everyone in the organisation is required to play their part in making ESS an environmentally responsible organisation.
Travel and transport
2.18
After homeworking, our largest source of emissions is commuting and business travel. Our office is conveniently located in Haymarket Edinburgh, with great transport links by rail, bus and tram, as well as proximity to local cycle networks and cycle parking and shower facilities on site. We therefore encourage staff to make use of these sustainable travel options, including staff-run initiatives such as getting involved in Cycle September, while car parking facilities are not routinely available.
2.19
Due to our hybrid-working model, much of our business is carried out online, however where business travel is required, we have now implemented a Business Travel Policy to introduce a hierarchy of sustainable travel options, requiring pre-approval when not followed and where appropriate. As well as having staff based across eight local authorities in Scotland, we also draw on expertise from our Board and Committee members from England and from Brussels, given our commitment to monitor developments in the EU and internationally. This does mean that business travel emissions, particularly flights, are inevitable, however we have worked with staff and members to bring these down significantly from our baseline figure, while continuing to remain efficient and effective in our working practices.
Corporate reporting and governance
2.20
As well as delivering on the operational actions outlined in our Sustainability Plan, it is important that we are transparent about our actions and performance in relation to our environmental commitments. A summary of our reporting commitments is covered in paragraphs 1.18 to 1.23.
2.21
To validate our emissions data for public reporting we commissioned an independent, third-party assessment of the methodology used in data collection for ESS’ Scope 3 carbon emissions, achieving a Reasonable Level of Assurance (the highest possible result). This review also included some considerations to further improve our reporting, for example, gathering data on well-to-tank emissions which are now included in our reporting.
2.22
Sustainability is also now built into our organisational governance. Our Sustainability Champion programme was fully established in 2024 and brings together a cross-team group of Board and staff members committed to driving sustainable practices at ESS. In addition to their knowledge-sharing as mentioned above, our Champions:
- support the preparation, monitoring and implementation of ESS’ Sustainability Plan
- provide regular updates to the Executive team and to the Board (including flagging relevant risks), and
- encourage sustainability considerations at all levels of decision-taking across ESS
Indirect emissions
2.23
At ESS we are committed to sustainable procurement and through our shared service agreement with the Scottish Government Procurement and Property Directorate we comply with the sustainable procurement duty. This requires the consideration of environmental wellbeing throughout, from supply to the life-cycle of goods and services procured
2.24
To ensure potential contractors demonstrate their own commitment to achieving net zero, before awarding a contract, we have added sustainability to the technical scoring for awarding contracts, alongside quality and price. This helps to encourage organisations to consider their sustainability impacts early on, through what they are supplying and how they are operating. Some of the sustainability benefits achieved under the procurement framework are:
- carbon reduction plans/net zero targets
- greener offices/greener travel
- Cycle to Work schemes
- waste reduction and recycling initiatives, including IT equipment and furniture being offered to local charities
- use of renewable energy suppliers
- employees encouraged to use days for Corporate Social Responsibility, net zero and community benefit activities
- hosting sector-focused national conferences where sustainability is a key topic
[2] Scope 3 emissions are those not produced by ESS, or activities from ESS’ assets, directly, but rather emissions that occur up or downstream from ESS’ activities, i.e. purchased goods and services, business travel and commuting.
[3] This assumes full-time office-working prior to the Covid-19 pandemic.
[4] Not available as this is a new reporting category adopted by ESS in 2023/24.
[5] Well-to-tank means the average of all emissions released into the atmosphere from the production, processing and delivery of a fuel or energy source.