A turning point came for development in the Everglades at the proposal in the late 1960s for an expanded airport, after Miami International Airport outgrew its capacities. The new jetport was planned to be larger than O'Hare, Dulles, JFK, and LAX airports combined,[citation needed] and the chosen location was 6 miles (9.7 km) north of Everglades National Park. The first sentence of the U.S. Department of Interior study of the environmental impact of the jetport read, "Development of the proposed jetport and its attendant facilities ... will inexorably destroy the south Florida ecosystem and thus the Everglades National Park".[141] When studies indicated the proposed jetport would create 4,000,000 US gallons (15,000,000 L) of raw sewage a day and 10,000 short tons (9,100 t) of jet engine pollutants a year, the project met staunch opposition. The New York Times called it a "blueprint for disaster",[142] and Wisconsin senator Gaylord Nelson wrote to President Richard Nixon voicing his opposition: "It is a test of whether or not we are really committed in this country to protecting our environment."[143] Governor Claude Kirk withdrew his support for the project, and Marjory Stoneman Douglas was persuaded at 79 years old to go on tour to give hundreds of speeches against it. Nixon instead proposed Big Cypress National Preserve, announcing it in the Special Message to the Congress Outlining the 1972 Environmental Program.[144] Although construction of only one runway was completed, the remains of the Everglades Jetport was later opened as the Dade-Collier Training and Transition Airport and is sometimes used as an aviation training facility.