Delicious Waste Liquids of the Future (1982)

The 1982 book Our Future Needs (World of Tomorrow) by Neil Ardley envisions a world where liquid waste is converted into food.

A food factory of the future serves a desert city. Pipes bring waste liquids from industries in the city to the factory, where they are converted into foods by bacteria in tanks. Solar panels capture the Sun's rays to provide heat for the food-manufacturing processes in the factory.

Tomorrowland, Disneyland Opening Day (1955)

Yes, this is Tomorrowland. And it's not a stylized dream of the future but a scientifically planned projection of future techniques by leading space experts in science.

This clip from Tomorrowland during the 1955 live broadcast of Disneyland's opening day shows the same brand of optimism we often see in 1950's predictions of the future.

You can see the entire broadcast of the opening of Disneyland on the DVD Walt Disney Treasures - Disneyland USA.

See also:
Walt Disney and City Planning

Walt Disney and City Planning

"Imagineers said that when they were planning Tomorrowland, Walt would carry around books on city planning and mutter about traffic, noise, and neon signs, and he kept three volumes in his office to which he frequently referred: Garden Cities of Tomorrow by Sir Ebenezer Howard (originally published in 1902 and reissued in 1965), which promoted a vision of a more pastoral urban life; and The Heart of Our Cities and Out of a Fair, a City, both by an architect and mall designer name Victor Gruen, who urged the reconceptualization of the city as more ordered, rational and humane."

(excerpted from p. 608 in Walt Disney: Triumph of the American Imagination by Neal Gabler)

Also, it looks like a new 2007 edition of Garden Cities of Tomorrow just came out.