From São Paulo to Belém: Brazil lays the groundwork for a trillion-dollar transition ahead of COP30

As the world looks toward COP30, one message echoed loudly through Brazil’s pre-COP week: the time for gradual efforts is over. Increasingly severe weather impacts are reshaping economies and communities, and the cost of inaction is rising fast. The next frontier of climate action depends on how fast we can finance resilience, not just mitigation. 

“We need solutions at the scale of trillions, not billions. Our job is to create opportunities,” said Climate Bonds Initiative CEO Sean Kidney during the week’s events. Investors are ready to act if given the right instruments and confidence to do so, he reminded. 

That confidence comes from clarity and comparability, the foundation of taxonomies and labelling frameworks. With more than 60 sustainable finance taxonomies now in place or under development worldwide, initiatives such as the Principles for Taxonomy Interoperability are helping to bring greater alignment to how markets define and measure sustainability. Alongside national efforts like the Brazilian Sustainable Taxonomy, these frameworks reduce market friction, foster trust, and strengthen investor confidence in market transition pathways. 

Turning ambition into action 

Across São Paulo, one theme stood out: the success of the global transition will depend on how emerging markets can attract and channel capital effectively. These economies hold the greatest potential for emissions reductions but also face the toughest financing challenges. Brazil, for example, holds one third of the world’s tropical forests, while is also the 5th largest methane emitter globally, and agriculture makes up 72% of it. 

Brazil is a vivid example of integrated sustainability in practice. Here, climate, nature, governance, and social inclusion are not isolated agendas but interconnected drivers of a just transition. True sustainability supports both environmental ambition and economic development, ensuring that climate action translates into jobs, social equity, and long-term resilience. 

As Leonardo Gava, Brazil Country Manager at Climate Bonds Initiative, summarised during the week, “what we call sustainable finance today, we hope in 10 or 15 years will simply be called finance.” 

Private sector participation also emerged as a key factor. As Kidney noted, the global target of USD1.3tn per year for climate investment will only be met if public institutions and private finance work together to turn policy ambitions into investable pipelines. 

Milestones from the week 

1) The USD 4.4 Trillion Climate Investment Opportunity report  
 
Launched at PRI in Person 2025 in São Paulo, Climate Bonds unveiled The USD 4.4 Trillion Climate Investment Opportunity Report, a first-of-its-kind mapping  of investable, climate-aligned opportunities across 12 leading economies. 

The report identifies USD4.4tn in potential investments by 2035 from only 12 countries, underpinned by seven megatrends including renewable expansion, resilient infrastructure, and digital transformation. It marks a decisive move from pledges to pipelines, from ambition to execution. 

Download the report here. 

 
2) Brazil’s Sustainable Debt State of the Market 2025 report 

The Brazil State of the Market H1 2025 report highlights a country with enormous potential for scale. Brazil currently ranks third in the LAC region, behind Chile and Mexico, yet already accounts for around 20% of the region’s sustainable-debt market, a share that continues to grow as policy frameworks and investor appetite strengthen. 

The report also reveals a USD141bn investment opportunity in forest restoration over the next 30 years, underlining Brazil’s capacity to channel global capital into nature-based solutions and regional resilience. 

Download the report here. 

 
3) The Brazilian Sustainable Taxonomy  

In a landmark moment, Brazil officially published its Sustainable Taxonomy, the result of over two years of collaboration between the Ministry of Finance, UNEP-FI, GIZ, BMZ, Ambire Global,Climate Bonds, and many other technical partners. 

The Brazilian Sustainable Taxonomy will serve as a strategic tool to guide investors and policymakers in identifying priority measures based on the main climate risks specific to each region. 

Learn more here. 

4) Principles for Taxonomy Interoperability  

Another milestone in advancing global taxonomy alignment, the Principles for Taxonomy Interoperability were launched at the Brazilian Stock Exchange – B3. Under the Roadmap for Advancing Interoperability and Comparability of Sustainable Finance Taxonomies, it presents seven core principles to enhance comparability, credibility, and usability of sustainable finance taxonomies worldwide, helping reduce fragmentation, and direct capital toward climate and sustainable development goals. 

Download the Principles here. 
 

5) Brazil’s Sovereign Sustainable Bond 

Brazil’s National Treasury announced a new Sustainable Global 2033 bond and the reopening of the Global 2035, mobilising USD2,25bn and marking its third sovereign sustainable issuance in international markets. 

The new sovereign issuance underscores that strength, reinforcing alignment between policy, taxonomy, and capital markets at a pivotal moment ahead of COP30. 

Learn more here. 

6) The Tropical Forest Finance Facility (TFFF) 

As Reyes Tirado, Agri-Food Lead at Climate Bonds said to Forbes, the $125 billion Tropical Forest Finance Facility (TFFF) is ‘a climate-finance game-changer, especially for the Indigenous Peoples and local communities who safeguard these vital ecosystems’, exemplifying the innovation needed to close the funding gap for forests and biodiversity.  

The facility aims to mobilise private capital for conservation and restoration, echoing Climate Bonds’ broader mission to integrate climate and nature finance under one investable vision. 

The implementation COP30  

From São Paulo to Belém, momentum is accelerating. 10 years after the Paris Agreement, Brazil is hosting COP for the first time and is showing the world how emerging nations can mobilise trillions for the transition while anchoring climate finance in social and economic justice. 

The foundations of making sustainable finance business as usual are now in place. Taxonomies, sovereign issuances and science-based criteria provide clarity to the market. That is why this is called the Implementation COP. We must turn commitments into credible investment to transition our economies into more resilient infrastructures. 

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