The Library of Congress, located in Washington, D.C., is the research library that officially serves the United States Congress and is the de facto national library of the United States. It is the oldest federal cultural institution in the country and is one of the largest libraries in the world, with millions of books, recordings, photographs, maps, and manuscripts in its collections.

The Library of Congress is committed to sustainability and has implemented various initiatives to reduce its environmental impact. It has been working on energy efficiency projects, waste reduction, and sustainable building practices. The library's sustainability efforts include the use of energy-efficient lighting, water conservation measures, and recycling programs.

While specific ESG reports or carbon footprint calculations for the Library of Congress are not readily available, the institution continues to explore ways to enhance its sustainability practices. The library's dedication to preserving cultural heritage also aligns with broader sustainability goals by ensuring that resources are available for future generations.