American Carbon Registry Updated:04/2021

The American Carbon Registry (ACR), a nonprofit enterprise of Winrock International, was founded in 1996 as the first private voluntary greenhouse gas registry in the world. A mission-driven institution named for philanthropist Winthrop Rockefeller, Winrock believes that climate change will have a profound impact on the poorest populations around the world and that markets are the most effective path to mobilize actions to reduce emissions.

Winrock operates ACR to create confidence in the environmental and scientific integrity of carbon offsets in order to accelerate transformational emission reduction actions. As a pioneer in harnessing the power of markets to improve the environment, ACR has set the bar for offset quality that is the market standard today and continues to lead market innovations.

Contact American Carbon Registry

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Contact American Carbon Registry

John Kadyszewski
2121 Crystal Drive
Suite 500
Arlington, VA  22202
Phone: (703) 302-6500
Fax: (703) 302-6512

Service Area

National service provider