Rock Solid Knowledge: Carbon Emissions Report 2024–2025

Sustainability and our B Corp commitment

As a certified B Corp, we are committed to operating for the benefit of all, from our clients, employees, communities, and the environment. Our approach to sustainability is grounded in our core values:

• Secure: Protecting data and systems, and extending this responsibility to safeguarding the environment.
• Reliable: Delivering consistent results, including transparent reporting and measurable progress on sustainability.
• Accessible: Making positive impact achievable for all, both within our organisation and in the wider community.
• Sustainable: Taking concrete steps to reduce our environmental footprint, not just offsetting but actively lowering emissions year on year.
• Ethical: Guiding decisions with integrity and a long-term view, prioritising what is right over what is easy.

Year-on-year carbon emissions: progress and trends

We have tracked and reported our organisational carbon footprint since 2020/21. The figures below show both the total emissions and the impact of targeted reduction efforts:

• The 2024/25 footprint represents an 18% reduction compared to the baseline year (2022/23), and a 31% reduction in staff commuting emissions compared to last year.
• Business travel emissions have decreased by 41% year-on-year.
• Energy usage on site has also fallen by 16%.

Emissions intensity

To ensure our progress is meaningful as the organisation evolves, we also track emissions per full-time equivalent (FTE) and per £1m revenue:

• 2024/25 emissions per FTE: 1.20 tCO₂e
• 2024/25 emissions per £1m revenue: 13.40 tCO₂e

This approach supports our B Corp goal of transparency and comparability, regardless of business growth or structural change.

What's next

The report includes carbon reduction targets and recommendations for the next 12 months. These will be reviewed in the following reporting cycle to track progress. We will continue to focus on practical measures for further reducing commuting and travel-related emissions.

Offsetting and carbon neutral status

To maintain carbon neutrality, we offset our footprint through the Woodland Fund™ Portfolio, supporting verified nature-based reforestation projects in biodiversity hotspots worldwide. For the 2024/25 period, our UK Climate Action focus will be:

• 75% Rewilding – supporting hay meadow restoration projects across the UK.
• 25% Sea Grass Restoration – helping to restore sea grass meadows off UK coastlines

This allocation reflects our commitment to biodiversity, ecosystem restoration, and long-term climate resilience. Both project types are selected for their measurable environmental impact and alignment with our B Corp values.

Why rewilding?

Rewilding involves restoring natural habitats and ecological processes that have been lost or degraded. In the UK, this often means the restoration of hay meadows once a common feature of the countryside, now reduced to a fraction of their historic extent. Restoring these meadows:

• Increases biodiversity by providing habitat for pollinators, birds, and other wildlife.
• Improves soil health and water retention.
• Sequesters carbon in both plants and soil, contributing to climate mitigation.
• Supports resilient ecosystems that can adapt to environmental change.

Why sea grass restoration?

Sea grass meadows are among the most effective natural carbon sinks, capable of storing carbon up to 35 times faster than tropical rainforests. Restoration of sea grass habitats:

• Captures and stores significant amounts of carbon dioxide.
• Provides nursery grounds for fish and supports marine biodiversity.
• Improves water quality by stabilising sediments and filtering pollutants.
• Protects coastlines from erosion.

Rock Solid Knowledge’s progress in reducing its carbon footprint reflects our B Corp values in action: prioritising sustainability, transparency, and ethical responsibility. We remain committed to measurable improvement, open reporting, and supporting climate action as part of our long-term partnership with clients, colleagues, and the wider community.