The American Chemical Society (ACS) is a leading scientific organization based in the United States, dedicated to advancing the knowledge and practice of chemistry. With a membership of over 152,000 chemists, chemical engineers, and related professionals, ACS is one of the world's largest scientific societies. The organization is committed to promoting excellence in chemistry through its numerous publications, conferences, and educational programs.

ACS plays a pivotal role in the global chemistry community by providing access to a wealth of scientific information and resources. It publishes a wide range of scientific journals and organizes national and international meetings to facilitate the exchange of knowledge and ideas among scientists.

In terms of sustainability, the American Chemical Society is actively involved in promoting green chemistry and sustainable practices within the chemical industry. The organization has established the Green Chemistry Institute, which focuses on fostering the development and implementation of sustainable chemical processes. ACS also offers various awards and grants to encourage research and innovation in green chemistry.

However, detailed information on the organization's overall carbon footprint and specific sustainability certifications is limited. ACS continues to advocate for environmentally responsible practices and policies within the scientific community.