Leading sustainability consultancy Tunley Environmental has published the 2025 edition of its annual Sustainability Report, providing a comprehensive analysis of the year’s most significant developments in climate action, biodiversity, regulatory change and corporate sustainability performance. The report outlines progress across global industry while highlighting the urgent challenges that will shape environmental policy and business strategy in 2026 and beyond.

Authored by Tunley’s team of scientists and sustainability specialists, the report provides sector-wide insights grounded in science, data analysis and real-world client outcomes. It reflects Tunley Environmental’s continued commitment to supporting organisations as they navigate evolving expectations around carbon disclosure, nature stewardship and supply chain transparency.

The 2025 report features:

• Major sustainability shifts in 2025, including advancements in carbon reduction, renewable energy, climate adaptation and the integration of biodiversity into corporate governance.
• An overview of the fast-changing regulatory landscape, including updates linked to the Corporate Sustainability Reporting Directive (CSRD), the UK’s PPN 006, global biodiversity frameworks and the latest standards from the Science Based Targets initiative (SBTi).
• Tunley Environmental’s company-wide impact, including the outcomes of their knowledge-sharing efforts through free sustainability webinars and guides.
• Key lessons from COP 30, particularly around nature-positive pathways and financing for climate resilience.
• Strategic outlook for 2026, identifying the opportunities, risks and innovations that organisations should prepare for in the year ahead.

Commenting on the release, Dr William Beer, CEO of Tunley Environmental, said: “2025 has been a truly remarkable year for sustainability. We’ve seen unprecedented regulatory changes alongside a growing understanding that climate and nature must be addressed together. This report reflects our mission to provide science-based insights that help organisations take meaningful action. As we move into 2026, businesses will need clarity, credibility and robust data more than ever. Our report and services aim to support them on that journey.”

The 2025 Sustainability Report is now available to download from the Tunley Environmental website here.

Source: Tunley Environmental