B Corps Demonstrate Path to Reduce Global Temperature Rise by 0.5°C as Business Leaders Mobilize at COP30
November 10, 2025 — As world leaders, policymakers, and stakeholders gather in Belém, Brazil, for COP30, new research from B Lab reveals that scaling the current practices of Certified B Corporations across the economy could reduce global warming by 0.5°C (0.8°F) by 2100, prevent 600,000 deaths from extreme heat, and lower extinction risk for thousands of species.
The new whitepaper, released today by B Lab, demonstrates that more than 10,000 B Corps are leading the way in adopting practices across circularity, environmental stewardship, and climate action, and achieving measurably better outcomes than their peers.
The release comes at a pivotal moment. Humanity has crossed seven of the nine planetary boundaries, critical thresholds beyond which natural systems may no longer self-regulate. In the face of shifting political headwinds, consumer demands, and growing regulatory pressures, B Corps are responding with innovation: putting nature on corporate boards, embedding purpose into business models, and adopting stakeholder commitments to build resilience. Their proven approaches demonstrate the crucial role business must play in driving systemic change.
On our current trajectory, our global temperature is expected to increase by 3.3°C (5.9°F) by 2100, causing irreversible consequences to our natural and human systems. But, using the En-ROADS climate simulation model, researchers project that if all businesses adopted impact management practices at the rate B Corps currently do, global temperature increase could be reduced by 0.5°C by 2100, a significant contribution toward Paris Agreement goals. Companies that adopt more practices achieve significantly better outcomes in reducing both greenhouse gas emissions and energy use, proving that the breadth and depth of environmental action have the potential to create compounding benefits.
The new research, based on data from thousands of B Corps, reveals that:
B Corps adopt substantially broader environmental and climate practices than conventional businesses, with this breadth and depth of action, not just isolated efforts or outperformance on specific practices, remaining key to driving impact.
Monitoring and reporting emissions is strongly associated with better outcomes, highlighting the importance of measurement and transparency in driving climate action.
Science-based targets demonstrably work, with B Corps adopting them achieving measurably better results in reducing GHG emissions, demonstrating the effectiveness of this globally recognized framework.
The whitepaper features case studies of B Corp innovation across sectors. Notpla, winner of the Earthshot Prize, tackles plastic waste with seaweed-based products. The biopharmaceutical Chiesi Group is developing carbon minimal inhalers with no compromise on safety, usability, or efficacy for patients. Yerba Madre transforms yerba mate production through regenerative agriculture in South America. In fashion, EILEEN FISHER's Renew program has taken back nearly three million pieces since 2009, fueling the brand’s growing textile-to-textile recycling initiative, United Repair Centre is pioneering repair at scale, working with global fashion brands to make repair central to their business models, and Circ is building a $500 million textile recycling plant in France, the first at an industrial scale.
The research acknowledges that B Corps are not "there yet" in fully operating within planetary boundaries and identifies areas for growth. However, new standards introduced in April 2025 will drive continuous improvement. For the first time, all B Corps must meet baseline requirements across seven Impact Topics, including Environmental Stewardship & Circularity and Climate Action. Under these standards, all companies will publicly disclose their annual progress on climate plans. Large companies will require third-party validated science-based targets. And the largest companies will be required to engage in climate advocacy that promotes science-based climate policies aligned with limiting global warming to 1.5°C.
The Nature of Business is part of B Lab's wider approach to climate justice, recognizing that holistic action requires engagement with stakeholders. This reflects B Lab’s COP30 Manifesto: a call to address climate change alongside the connected crises of nature loss, social inequality, and short-termism in governance. It recognises that lasting climate solutions require protecting ecosystems, upholding human dignity, and putting stakeholder needs at the center of how businesses operate and economies function.
Since B Lab's founding in 2006, the B Corp movement has grown from a bold idea to a global force for systemic change. The strength of the community lies in its diversity, now spanning industries, sizes, and geographies; the innovations at play across business models and practices demonstrate what is possible and provide a roadmap for broader change.
“For nearly two decades, B Corps have been demonstrating a different way of doing business. Now, new research shows this model has the power to be a decisive force in the fight against the climate crisis,” says Sarah Schwimmer, Co-Lead Executive of B Lab Global. “Our presence at COP30 amplifies the movement's voice at a critical moment. We're inviting other businesses to recognize the outsized impact they have the opportunity, and responsibility, to make.”
“At Yerba Madre, we believe brands have a decisive role in fighting climate change, and that real action begins in the way we grow and source,” says Rocio Bermudez Pose, Impact Lead of Yerba Madre. “As part of a community of purpose-driven businesses, we’re building regenerative supply chains rooted in biodiversity and community, turning impact from a concept into the way we do business.”
“I’m proud that at Notpla, our mission to make packaging truly disappear is matched by a deep commitment to reducing our climate impact,” says Hoa Doan, Head of Impact of Notpla. “B Corp Certification has guided us in turning that ambition into action — embedding accountability and purpose at every level of the business.”
“We believe business can be a force for good — driven not just by profit, but by a deep responsibility to people and the planet,” says Susan Scow, Sustainability Impact Specialist at EILEEN FISHER. “B Corp Certification challenges us to continually re-evaluate and improve our practices, ensuring we create the greatest possible impact—for workers, customers, communities, and the environment. At EILEEN FISHER, B Corp Certification is more than a label—it’s a vital tool that helps us live our values and expand our positive impact.”
“Repair is a radical form of climate action. It turns waste into work, consumption into care, and garments into stories worth continuing,” says Thami Schweichler, Founder and CEO of United Repair Centre. “B Corp Certification helps us scale this mission with integrity, showing that a just and regenerative clothing industry is already taking shape.”
“Fashion is one of the world’s most resource-intensive industries, and addressing its waste is central to Circ’s mission,” says Peter Majeranowski, CEO of Circ. “Our B Corp Certification reflects how we collaborate with brands, manufacturers, and innovators across the value chain to build circular systems that turn waste into new materials, because innovation only matters when it drives real change for people and the planet.”
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For more information, please contact: press@bcorporation.net
About B Lab: B Lab is a nonprofit transforming the global economy to benefit all people, communities, and the planet. A leader in economic systems change, our global network creates standards, policies, tools, and programs for business, and we certify companies, known as B Corps, that are leading the way. To date, our community includes 1,000,000 workers in over 10,000 B Corps across 102 countries and 160 industries. To learn more, visit bcorporation.net.
About B Corp Certification: Certified B Corporations, or B Corps, are companies verified to meet B Lab’s standards of social and environmental performance, transparency, and accountability. Based on stakeholder input, research, and established best practices, B Lab’s standards are the basis for B Corp Certification requirements and B Lab’s impact management tools, and they inform the network’s programs and collective action initiatives.