Always nice to see manufactured heros go crackers!
It happens in real life, why not in cartoons too :)
I like a lot about this animation - the severe friction between characters, off-beat humor and escalating problems. He's ticked off about a littered cigarette, then totally loses it over improper grammar! Looks like you made equal mockery of both sides of the global warming issue.
Stylistically I really appreciate the use of fine lines, lighting and creative camera angles. I love the balance overall.