Today, the Biden Administration released the US Nationally Determined Contribution, setting a vision and pathway to net zero emissions, a strong economy, healthier communities, and better wellbeing for residents across the United States. 

The ambitious targets outlined in the US NDC rely on the leadership and action of subnational actors at every level and across the political spectrum, including cities, states and businesses across the US. In fact, between 54-62% of national targets can be achieved by continued, high-ambition actions from non-federal actors, even in the context of federal inactions or rollbacks.. 

C40 cities will continue to implement their ambitious climate action plans no matter what action – or inaction – the  incoming federal Administration takes. As reflected in today’s US NDC, American cities will continue to lead on emissions reduction, while creating jobs, building a stronger local economy, and increasing quality of life for the people of their cities. 

Kate Gallego, Mayor of Phoenix, said: “The US NDC is an important commitment to modernize our infrastructure, make long-term investments in our economy, and set a strong course for 21st-century American leadership. To reduce our dependence on fossil fuels and build healthier communities, we’ll need investment and creativity at all levels of government and from all sectors. In Phoenix, we have invested over $700 million in projects that reduce pollution and mitigate climate change, including building the largest wastewater-to-biogas facility in the country and expanding solar for residents and businesses alike.  Not only have these projects improved energy efficiency and reduced utility costs, but they have also created local jobs, enhanced public health, and contributed to our national prosperity and competitiveness.”

Bruce Harrell, Mayor of Seattle, said: “Seattle residents know the importance of tackling the climate crisis and building more resilient, sustainable communities in the face of extreme weather like heat and smoke. Seattle is proud to stand with our fellow local governments to renew our commitment to this vital global treaty. My administration is working toward an ambitious climate target of reducing emissions 58% by 2030. Seattle voters are with us — they just approved a $1.5 billion transportation levy in November to improve public transit across our region, making it easier and safer for people to get around for work, play, and social connection. Seattle has and will always be dedicated to working with our partners in government, business, and community to take coordinated, effective action against climate change for a safer and healthier City for all.”

Brandon Johnson, Mayor of Chicago, said: “The US Nationally Determined Contributions are a clarion call for action at the local level. Chicago has always been a leader in climate action, from dedicating funding to help low-income residents decarbonize their homes to investing in clean energy projects on public buildings. No matter what the future holds, we will not back away from our commitments to our community, country, and the world to reduce our reliance on fossil fuels and shift to a pro-people, sustainable economy. The US NDC reflects the urgency to act to reduce fossil fuel emissions. Chicago will continue to move forward, and I urge all leaders, regardless of party or level of government, to commit to taking strong climate action in the years ahead.”

Michelle Wu, Mayor of Boston, said: “This strengthened target underscores the power of collective action to confront the climate crisis. Boston is proud to lead by example with ambitious policies to do our part in reducing emissions, creating green jobs, and protecting our communities. These efforts are transforming how we grow as a city—from electrifying our school bus fleet, to deploying innovative flood protection and expanding green spaces. Boston is demonstrating that bold climate action delivers immediate benefits for healthier communities while strengthening our economy. The pathway set by the US NDC is a critical roadmap, and Boston is committed to accelerating progress in partnership with cities across the nation and the globe.”

Kirk Watson, Mayor of Austin, said: “Today’s release of the US Nationally Determined Contribution is a critical moment for leaders across the political spectrum and around the world to recommit to climate action. Austinites know that investments in smart climate solutions are investments in the prosperity, safety, and health of our families. That’s why the Austin Climate Equity Plan continues to guide our work to reach net zero. I am proud to be a climate leader, bringing together individuals, businesses, and communities to forge a better future, together.”

Mark Watts, Executive Director of C40 Cities, said: “The updated U.S. NDC represents a bold recommitment to global climate leadership, even amidst political headwinds. It reflects the transformative climate action already underway in cities across the country, from Los Angeles to Boston, and harnesses the ambition of local governments, businesses, and communities working together to secure a sustainable future.

“At C40, we know the power of city leadership in delivering the emissions reductions and resilience our world desperately needs. As we face the challenges of a second Trump presidency, cities remain bastions of climate progress, driving forward the action needed to transition to a green economy and a better quality of life for people. This renewed vision from the United States reinforces the importance of collaboration at all levels of government to confront the climate crisis and build a cleaner, healthier, and more equitable future for all.”

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