The answer is Richard M. Nixon.
John F. Kennedy served as the 35th President of the United States from 1961 until his assassination in 1963. During his presidency, environmental issues were not a primary focus, and he did not establish the Environmental Protection Agency (EPA).
Lyndon B. Johnson, the 36th President, served from 1963 to 1969. While he did sign several important environmental laws, such as the Clean Air Act of 1963, he did not create the EPA.
Richard M. Nixon, the 37th President, served from 1969 to 1974. He established the Environmental Protection Agency in 1970 as part of his administration's response to growing environmental concerns. The EPA was created to consolidate federal research, monitoring, standard-setting, and enforcement activities to ensure environmental protection.
Jimmy Carter, the 39th President, served from 1977 to 1981. While he was known for his environmental advocacy and energy policies, he did not create the EPA, as it was already established during Nixon's presidency.