The Cincinnati Zoo & Botanical Garden, located in Cincinnati, Ohio, is one of the oldest zoos in the United States, having opened in 1875. It is renowned for its diverse collection of animals and plants, as well as its commitment to conservation and education. The zoo is home to over 500 animal species and 3,000 plant varieties, making it a significant center for biodiversity.

The zoo is actively involved in numerous conservation projects both locally and globally. It has established breeding programs for endangered species and participates in various wildlife conservation initiatives. The Cincinnati Zoo is also dedicated to educating the public about the importance of preserving natural habitats and protecting wildlife.

In terms of sustainability, the Cincinnati Zoo & Botanical Garden has made significant strides. It is recognized as one of the greenest zoos in the country, having implemented numerous eco-friendly practices. The zoo has achieved Leadership in Energy and Environmental Design (LEED) certification for several of its buildings, showcasing its commitment to sustainable architecture. Additionally, it has reduced its carbon footprint through energy-efficient systems and waste reduction programs.

The zoo's sustainability efforts extend to its operations, with initiatives such as water conservation, recycling programs, and the use of renewable energy sources. It also engages in community outreach to promote environmental awareness and sustainable living practices. The Cincinnati Zoo & Botanical Garden continues to set an example for other institutions by integrating sustainability into its core mission and daily operations.