The conversation builds on California’s growing partnerships across the continent, including a 2025 agreement with Kenya to reduce pollution, expand clean transportation and energy innovation, and strengthen trade; a five-year agreement with Nigeria, signed at COP30, covering sustainable transportation, green ports, low-carbon fuels, methane reduction, climate adaptation, air quality and academic cooperation; and an agricultural partnership with South Africa’s Western Cape focused on climate-smart agriculture, water efficiency and research.

As a co-founder of the Under2 Coalition, California will remain a reliable, long-term partner as African leaders shape next year’s summit.

Spotlighting California’s ocean science on the world stage

The Governor and First Partner also visited the Ocean Pavilion, where the Woods Hole Oceanographic Institution and UC San Diego’s Scripps Institution of Oceanography are hosting seminars on climate and ocean health.

Now in its fifth year at the UN climate conference, the pavilion brings scientists, students, and thought leaders together with negotiators to elevate science-based ocean solutions to the climate crisis. Scripps Oceanography is a California crown jewel and one of the world’s most important centers for global earth science research and education.

California at COP31

COP31 is the 31st Conference of the Parties to the United Nations Framework Convention on Climate Change, an annual global climate conference that brings together world leaders, scientists, businesses, non-governmental organizations, and civil society to advance action on climate change. Held in Antalya, Türkiye, from November 9–20, 2026, the conference is hosted by Türkiye, with Australia leading the negotiations. This year’s focus is on implementation: turning climate commitments into concrete, measurable results.

As a founding member of the Under2 Coalition and the U.S. Climate Alliance and as co-chair of America Is All In, California is demonstrating how states and regions can sustain international cooperation, accelerate clean energy, and deliver climate solutions that lower costs, create jobs, and strengthen resilience, even as the federal government retreats.

California’s delegation includes Governor Gavin Newsom; First Partner Jennifer Siebel Newsom; California Natural Resources Agency Secretary Wade Crowfoot; California Department of Food and Agriculture Secretary Karen Ross; California Public Utilities Commission President John Reynolds; California Air Resources Board Chair Lauren Sanchez; and Governor’s Office of Land Use and Climate Innovation Director Samuel Assefa.

California’s climate leadership

Since Governor Newsom took office in 2019, California has added more than 39,000 megawatts of utility-scale clean energy to serve the California grid. That’s helped make the grid more reliable and pushed the state further along its path in the clean energy transition.

The most recent numbers, from the end of 2024, show real progress: 67% of retail electricity sales in the state already come from clean energy. Last year, clean energy met 100% of the state’s electricity needs for at least part of the day on 279 separate days.

Solar and battery storage have been a key part of that progress, and are changing how California keeps the lights on. Since 2019, battery resources serving California grew from fewer than 700 megawatts to more than 23,000 megawatts — an increase of more than 3,100%. Batteries store solar power when it is abundant and deliver it after sunset. That reduces how often the state needs to run natural gas plants, which cuts air pollution and supports a more cost-effective electricity system. 

California’s approach is also where the money is heading. Global investors are now putting roughly two dollars into clean-energy technology for every dollar that goes into fossil fuels. California is leading that shift while Donald Trump watches from the sidelines.

For California, that means investing in the good-paying jobs of the future. The Golden State is the 4th-largest economy in the world and leads the nation in total clean energy jobs, with 552,300 workers employed across clean energy technologies, nearly twice as many as the second-ranked state, Texas, according to a 2025 report from E2. California’s clean energy workforce grew by nearly 7,300 workers in 2024, outpacing job growth in the rest of the state’s economy by more than three times.

California’s global climate network

California has long been a key player on the international stage, from taking joint action on climate change to identifying new pathways and partnerships for sustained economic growth. During the Newsom administration alone, California has formed over 70 international partnerships that lay critical groundwork for our continued economic success, while prioritizing workers and businesses that benefit from these new opportunities.

Golden State and global partnerships

• Portugal (2026): California and Portugal signed a memorandum of understanding to cooperate on low-carbon, clean energy development; climate change adaptation and mitigation, including extreme heat resilience; zero-emission mobility and transportation; emergency response and management; wildfire management and prevention; the sustainable blue ocean economy; and trade, investment and economic development. 

• United Kingdom (2026): California and the United Kingdom signed a memorandum of understanding to tackle climate change and promote sustainable development together. The memorandum of understanding builds on an already strong history of cooperation, and focuses on areas for collaboration including clean energy technologies, climate resilience, decarbonizing transportation, and protecting the natural environment. 

• Chile (2025): California and Chile signed a memorandum of understanding regarding exchanging information, developing best practices, and cooperating on methane emissions reduction. Methane is a highly potent greenhouse gas, and the partnership between California and Chile opens up new opportunities for both partners to cooperate on methane reduction in waste, agriculture, and energy sectors.

• Colombia (2025): California and Colombia signed a partnership to advance joint efforts on forest conservation, methane reduction, climate resilience, and clean energy development. The memorandum of understanding deepens coordination on protecting the Amazon, strengthening biodiversity, and expanding nature-based climate solutions that support sustainable and equitable economic growth.

• Nigeria (2025): California signed a memorandum of understanding with Nigeria on sustainable urban transportation, green ports, low-carbon transportation fuels, climate adaptation, methane detection and abatement policies, greenhouse gas emissions and air quality, and academic exchange and university partnerships. The partnership will build upon our shared commitment to sustainable growth, accelerate the transition to zero-emission transportation, and expand opportunities for the next generation.

• Brazil (2025): California signed a memorandum of understanding with the Brazilian federal government to scale up cooperation on climate, clean energy, cutting pollution, and job-creating climate opportunities. This new partnership, announced in September 2025, will advance market-based carbon pricing programs, expand clean transportation, including zero-emission vehicles and low-carbon fuels, and strengthen air quality management through enhanced monitoring and regulatory controls. The partnership also focuses on conserving 30% of lands and coastal waters by 2030, including nature-based solutions and biodiversity protection. In 2025, California also advanced a partnership with the State of Pará to strengthen cooperation on wildfire prevention and response — enhancing forest monitoring, identifying areas most at risk, and sharing research and expertise to improve firefighting and emergency management. 

• Kenya (2025): California signed a partnership focused on cutting pollution and supporting trade. The partnership advances medium- and long-term low-carbon development, policy research, development, and innovation in sustainable land use and urban planning that reduces long commutes and urban sprawl, while promoting integrated land use and transport systems. 

• Noord-Holland (2024): California and Noord-Holland signed a Letter of Intent advancing next-generation air mobility — from drones to zero-emission aircraft. Joint innovation missions are producing pilot projects that inform California’s Advanced Air Mobility Implementation Plan and readiness for major global events.

• Australia (2023): California signed a memorandum of understanding (MOU) with Australia that helped inform the country’s first-ever vehicle carbon emissions standards through input from the California Air Resources Board. The California Public Utilities Commission and California ISO have also advised Australia on electricity market reform to better align incentives for renewable energy.

• British Columbia (2023): California and British Columbia signed a memorandum of understanding on mutual wildfire assistance that is delivering results. British Columbia sent incident management experts to support California’s Palisades Fire in 2025, while CAL FIRE deployed personnel during British Columbia’s 2025 fire season. These exchanges established a lasting framework for cross-border wildfire support.

• China (2023): California signed five Memoranda of Understanding (MOUs) with China’s National Development and Reform Commission, the provinces of Guangdong and Jiangsu, and the municipalities of Beijing and Shanghai to advance cooperation in cutting greenhouse gas emissions, transitioning away from fossil fuels, and developing clean energy.

• Denmark (2021): California and Denmark signed a memorandum of understanding to collaborate on groundwater mapping, leak detection, and water efficiency, which has modernized California’s data systems and informed key state programs, like the Airborne Electromagnetic Survey. Danish technologies and expertise have helped strengthen drought and water-supply resilience statewide.

• Mexico (Baja California & Sonora): California signed Memoranda of Understanding (MOUs) with the Mexican states of Baja California and Sonora to advance zero-emission freight corridors, clean ports, and battery manufacturing — strengthening North American supply chains and workforce readiness. Joint forums have already produced new research collaborations and training programs advancing clean-tech.