The UK government has launched a consultation into integrity principles for voluntary carbon and nature markets, aiming to mobilise climate finance and support British businesses in diversifying their revenue streams.

These markets facilitate carbon credit trading, enabling businesses to invest in eco-friendly projects, such as deploying electric vehicles and planting trees, to offset their emissions. Voluntary credits are intended to address unabated residual emissions rather than substitute for direct value chain decarbonisation.

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The consultation reflects the expected growth of demand for carbon offset projects and credits, with MSCI forecasting that by 2050 the carbon and nature markets could be worth up to $250bn and $69bn, respectively, under optimal conditions.

However, these markets have yet to reach their full potential due to unclear guidelines for businesses and ineffective practices.

The UK government’s new framework targets these issues with a set of principles to guide businesses in using carbon credits responsibly and improve market effectiveness. The initiative aims to build trust, ensure environmental benefits and promote transparency in sustainability reporting.

As part of the UK’s Plan for Change, designed to position the country as a global hub for green finance, the initiative seeks to drive growth and investment while simultaneously addressing the climate crisis.

Active carbon and nature markets unlock new revenue streams and investment opportunities for British businesses, including farmers and land managers.

“It is why increasing trust in these markets will ensure that they benefit both people and our planet, ensuring money flows towards genuine environmental improvement projects and creates new sources of finance for farmers and land managers in the UK,” said Nature Minister Mary Creagh.

The UK’s commitment to green finance is further demonstrated by the £43.7bn ($57.8bn) of private investment in clean energy industries since July and the net-zero economy’s growth rate, which is three times faster than the overall economy.

The government’s consultation is aligned with a regulatory approach that supports growth, including a recommendation from the Corry Review to launch a Nature Market Accelerator that will bring coherence to nature markets and spur investment in environmental projects.

Voluntary Carbon Markets Integrity Initiative (VCMI) executive director Mark Kenber said: “Businesses need clarity and confidence to invest in voluntary carbon and nature markets that help meet global climate goals. This consultation from the UK government plays a vital role in delivering this.

“VCMI welcomes the proposal to recognise our Claims Code as international best practice, as well as the global leadership shown by the UK’s proposal to incentivise greater action by companies to address their unabated Scope 3 emissions through the inclusion of our forthcoming Scope 3 Action Code of Practice. The Code of Practice will enable companies to go further, faster and with integrity on climate action.”

The Scope 3 Action Code of Practice allows companies to retire carbon credits to meet their interim emissions reduction targets while pursuing long-term decarbonisation.