I was intrigued by this trailer for a forthcoming anime film. From Wiki, we learn that it is set in a future in which humankind has spread across the universe but then gone into decline, and that Earth has subsequently been taken over by an "authoritarian universal government by the name of the Gaia Sanction" which "declares Earth a sacred planet, and thus forbidden for humanity to repopulate".
Anyone would think that the greens were starting to be seen as the bad guys.
Here's the trailer, which looks like a lot of fun even without the message.