On Before New York in National Geographic.
To date, computer graphics have been used most memorably in live-action movies to realize futuristic objects like spaceships. It’s the continuation of a push that began in the 1800s with railroads and crystal palaces. (e.g., From Metropolis through 2001 to Minority Report, etc.) To make visible an industrial reality.
Perhaps, we’ve hit a wall in that direction. If so, we’ll begin to realize a post-industrial reality, using CG to render green where there is currently steel.
Of course, both are artificial, man-made scenarios. Only one appears to be sustainable – for now.