Article 6.4 of the Paris Agreement is poised to launch international carbon market deals that promote nature-based climate solutions. Recent proposals emphasize the convergence of market-based credit systems to tackle ecological crises, alongside a significant biodiversity finance target. While carbon credits can strengthen ties between climate and biodiversity objectives, concerns about project integrity and additionality must be addressed. The complexities of new rules may hinder investment, prompting exploration of alternative conservation funding models.
The Article 6.4 of the Paris Agreement is set to introduce its first international carbon market deals soon, encouraging the adoption of nature-based climate solutions. As climate impacts like floods and droughts surge, experts stress the need for a comprehensive approach to tackle climate, biodiversity, and freshwater crises.
In early 2025, Singapore proposed tighter alignment across market credit systems, influenced by recommendations from the 2024 Global Commission on the Economics of Water. The recent COP 16 endorsed a biodiversity finance target of USD 200 billion per year by 2030, also establishing a new financing mechanism to strengthen the integration of climate and nature funding.
The connection between carbon credits and biodiversity holds significant potential for interlinking climate initiatives. Between 2021 and 2023, roughly 80% of voluntary carbon markets featured nature-based objectives. A new fund focused on preserving the Amazon aims to issue USD 1.5 billion in carbon credits to support biodiversity initiatives.
Standard-setting organizations like Verra and NatureFinance are advancing efforts to reconcile carbon and biodiversity financing. This aligns with the Paris Agreement’s goal to balance emissions and removals while recognizing the importance of enhancing carbon sinks through result-based payments.
The newly adopted Article 6.4 has triggered a surge in carbon credit proposals, with around 1,000 notified in recent months. However, only 10% of these proposals involve nature-based carbon offsets, with the majority focusing on energy projects. This focus reflects the dominant interest in renewable energy investments, despite existing challenges with the additionality of these projects.
Historical assessments of similar frameworks indicate previous carbon credit systems struggled with credibility, leading to apprehension over nature-based proposals. Concerns about greenwashing and biodiversity harm persist, as monoculture projects tend to cause ecological degradation while diverse ecosystems prove more effective at carbon storage.
Article 6.4 includes robust safeguards to ensure project integrity, emphasizing the necessity of protecting biodiversity and managing critical species. Though comprehensive, these standards may pose challenges regarding implementation and cost. An innovative carbon sink buffer pool aims to mitigate risks from climate impacts, reflecting the complexity of new carbon credit frameworks.
Investors may consider alternatives like Brazil’s Tropical Forest Forever Fund, which plans a simpler approach for measuring forest conservation without stringent additionality rules. The future of Article 6.4 hinges on whether it can successfully attract private investment for nature-positive carbon credit opportunities, especially given the shrinking carbon stocks in many regions. Learning from past challenges will be vital to forge a sustainable path forward for climate finance.
The upcoming Article 6.4 carbon market initiatives represent a pivotal step in integrating carbon credits with biodiversity efforts. As climate impacts intensify, a holistic approach is critical to addressing interconnected environmental crises. The successful launch of these carbon credit deals will depend on overcoming previous pitfalls in credibility and funding, while ensuring that new frameworks prioritize ecological integrity and nature-positive outcomes.
Original Source: sdg.iisd.org