Wall-E and global warming

Watched the movie Wall-E yesterday (it's Disney's!). Pixar's next rookie (after John Lesseter), Andrew Stanton, is exploring the message of global warming.

In the future, the whole world will be full of garbage. Only robots collecting trashes exist, and occasionally, Earth are swept by some sort of typhoons.

The whole entire population left the earth, to faraway galaxy, boarding a huge spaceship called "Axiom". The whole entire population are at their extreme laziness:

They just sit on a floating chair, and all their foods and their needs are served by robots. They can't even stand up. Their body are fat, and they do nothing except chatting with their friends on the screen of the moving chair. And the chair will move in a specified direction and they don't seem to have control over it. Thus, they just know some part of the ship, and not all (some people don't know where the pool is).

One of the robot called Wall-E still collection garbage. He met "Eva", when Eva was sent by a huge spaceship for a mission - to find life on earth (in this movie's case, a plant).

Wall-E fell in love with Eva, and gave a plant that he found in an old fridge. "Eva" grabbed the plant, put it in her stomach and automatically shut down. Later, "Eva" was grabbed by the spaceship. Wall-E managed to grab the spaceship to follow where Eva goes.

Conflict

Axiom's Captain want to grab the plant and go home, but the Navigator called "Auto" (because it is always in Auto mode), wouldn't allow it because the instruction of the company that run the Axiom spaceship called "Buy and Large", due to high toxic level on Earth (I thought about it again, it's probably an excuse to run his business). By the way, Axiom has been running for 700 years.
With much struggle, Captain finally managed to switch "Auto" to "Manual".

At the same time, Wall-E was thrown back to Earth together with the plant, but saved by Eva.

Together, with the help of the savvy Captain and people on the ship, Eva and Wall-E managed to put the plant on the ship, and Axiom went back to Earth.

End

Wall-E and Eva finally get together on Earth. And the earth population is back and managed to plant the trees.