 [scene 1: 3d, tree in middle of wasteland]
Narrator: It is the year 2049
Narrator: Collapse of ecosystems in mid-2020s
 [tree maybe loses color and dies]
Narrator: ruined everyone's musical tastes

 [scene 2: transition to 2d]
 [camera moves to sea (only gray-brown surface, maybe waves?)]
Narrator: All seas are so polluted
 [camera dives under surface, change to 2d mode, blinking]
Narrator: that they blink

 [scene 3: fish swims to screen by camera panning]
 [camera zooms out, another fish enters]
Fish1: Hey, what's up
Fish2: Not much
Fish1: Same old huh
Fish2: Yea, busy busy
Fish1: Where are you going?
Fish2: What does it look like?
Fish1: Oh
Fish1: Right

 [scene 4: tin can]
 [enter somehow more fish? maybe camera zooms out more, and there just are lots of fish, and trash all over]
Fish1: What's that
 [tin can drops from above, it actually moves, maybe stops in the middle]
Fish1: "Sur... strömming", what the shit?
Fish1: "Should be opened under water"
Fish1: Check
Fish1: All right... pull here...
 [cloud (particles?) erupts from tin can]
 [all fish change direction away from tin can]
All fish: Oh god / Flee! / What the hell / ...
 [fish maybe gradually change into dead fish, direction is upwards?]

 [Greetings texts scroll]