Climate leaders at COP 25 in Madrid; l-r: Bill Funderburk, Castellón & Funderburk LLP; Wade Crowfoot, California Natural Resources Agency; Pedro Pizarro, Edison International; Andreas Klugescheid, BMW; Jack Broadbent, Bay Area Air Quality Management District; Craig Ebert, Climate Action Reserve; Patricia Fuller, Government of Canada; Cathy Woollums, Berkshire Hathaway Energy; Sharon Tomkins, SoCalGas; George Heyman, Province of British Columbia; Anu Hittle, Hawaii Department of Land & Natural Resources; Mandela Barnes, State of Wisconsin; Ben Grumbles, Maryland Department of the Environment; Amy Holm, The Climate Registry

Learn, collaborate, and build relationships with climate leaders and activists from around the world

The Climate Action Reserve and The Climate Registry (TCR) have led joint delegations to COP for over a decade, beginning with COP13 in Bali in 2007. Participating in COP provides an excellent opportunity to learn, collaborate, network, and build relationships with climate leaders and activists throughout the world. The Reserve and TCR host numerous delegation activities, including a welcome reception, closing dinner, policy briefings, and side events to facilitate learning and networking.


Delegation participants have valuable opportunities to learn from and contribute to COP. By participating, delegation members gain knowledge during thought-provoking side events in key subject areas such as subnational action and climate finance; share insights and collaborate on best practices, lessons learned, and emerging ideas in climate change policies and programs; engage with leading climate experts and professionals on various aspects of climate policy and science; show support for subnational and national leadership on climate change issues; and share key insights speaking at conference side events.


Participation in the COP conference with the Reserve-TCR joint delegation provides excellent opportunities to network and build relationships with climate leaders from around the globe. The Reserve-TCR delegation typically includes governors, senior government officials, corporate executives, NGO representatives, and other climate leaders from the United States. Past delegation members include: Senator Bob Wieckowski, State of California; Senator Bob Hertzberg, State of California; Mary Nichols, Chair, California Air Resources Board; Anukriti Hittle, Hawaii Climate Change Mitigation and Adaptation Coordinator; Reed Schuler, Senior Policy Advisor to Governor Jay Inslee of Washington State; Ben Grumbles, Secretary of the Environment, State of Maryland; Annie Notthoff, Director, California Advocacy, Natural Resources Defense Council.


The Climate Action Reserve and The Climate Registry offset air transportation emissions for members of their joint delegation traveling to COP. The offsets retired are Climate Reserve Tonnes (CRTs), and information on the offset credits and their projects are publicly accessible. This offsetting has been in place for the joint delegation since COP21 in Paris.


The Climate Action Reserve is the most experienced, trusted and efficient offset registry to serve the carbon markets. With deep roots in California and a reach across North America, the Reserve encourages actions to reduce greenhouse gas (GHG) emissions and works to ensure environmental benefit, integrity and transparency in market-based solutions to address global climate change. The Reserve program promotes immediate environmental and health benefits to local communities and brings credibility and value to the carbon market. The Climate Action Reserve is a private 501(c)(3) nonprofit organization based in Los Angeles, California. For more information, please visit

The Climate Registry (TCR) is a non-profit organization that empowers North American organizations to act on climate change by providing services and tools that help them reduce their emissions. TCR also drives climate action and ambition on the road to net zero by recognizing and showcasing sub-national leadership, and building strategic partnerships with and between national and international entities. TCR is advised by a Council of Jurisdictions that includes representatives from diverse U.S. states and Canadian provinces and territories. Learn more:


COP25 – Madrid, Spain

COP24 – Katowice, Poland