Tagline: "No! No! No! No! Heh, heh. No." -Hank
When Hank, Dale & Bill go to the quarry to get the car, they use a tow truck to try and pull it up. If you look at the tow truck you can see it is a red color. Later on when the protesters come and are sitting in a circle and singing the tow truck is now orange. It stays orange for the rest of the scene.
As Hank tells Bill & Dale that they are going to drain the quarry (whilst in Dale's basement) and Dale lets his burning cigarette drop. Dale & Bill start to freak out and it goes to a wide shot of the three of them & the cigarette Dale dropped is not on the ground anymore.
Boomhauer's car, Ms. Sally, has a Texas flag license plate on it. These plates were not issued until the 90s, but Ms. Sally was driven into the quarry while the guys were in high school, 1970s at the latest.
When Hank goes to Bobby's class for "environmental court" and is sworn in, you see Bobby sitting at a large desk and to the right there is nothing next to it. The next shot there are now a few empty desks next to the large desk.
Bobby: This is the first time in my life I've gotten you to change your mind about something. Which of my arguments did you love the most?
Hank: Oh, you know... spaceship earth... we're all in this together... random acts of whatnot.
Young Dale: Wait a minute! Kid Dy-no-mite has got it! Why don't we take Boomhauer's car for a joyride?
Young Hank: Joyride? That sounds fun. And you know what would be even more fun? If after we drive it, we fill it with gas, so the next time Boomhauer uses it, he's like, "How'd that happen?"
Hank: (being sworn in) Hey, this isn't the Bible, it's a Harry Potter book!
Emily: We're not allowed to bring the Bible to school.
Peggy: Bobby, I'll have you know I consider myself one of the great environmentalists of our time.
Bobby Hill: Mr. Boomhauer, can I ask your advice?
Bobby Hill: How long should we stay angry at my dad?
Boomhauer: Well, you know, Bobby, don't take for me man. You know, life's too short, man. You don't want to hold no grudge, man. Talking about, let old bygones be bygones, man. Maybe two weeks, probably three.
Bobby Hill: You know Mr. Boomhauer, I can see why my dad is always quoting you.
Boomhauer: Man, your daddy's quoting me? Goddang, man. Maybe just make it one week.
Hank Hill: Boomhauer thinks some Yankee kids came down and stole the car, and he's going to go to his grave thinking that.
Dale Gribble: Boomhauer's grave? Are you suggesting we kill Boomhauer? Well, you're the boss.
Hank Hill: We're not killing Boomhauer.
(During a flashback scene from high school when Hank, Dale and Bill drove Boomhauer's car, Ms. Sally, into the quarry):
Dale Gribble: The left brake's not working!
Hank Hill: That's the clutch! Hit the other pedal!
As Boomhauer's car falls into the quarry, the song playing on the radio is "Live and Let Die" by Paul McCartney & Wings.
This episode won an Environmental Media Award for best use of environmental themes in a half-hour sitcom episode.
31 Flavors: The ice cream store Bill mentions in the flashback scene is most likely a reference to Baskin Robbins, which is known for having 31 flavors.
Boomhauer's old Mustang named Ms. Sally alludes to the song Mustang Sally made famous by Wilson Pickett.
The title is the song It's Not Easy Being Green, by Kermit the Frog.
The whole plot of this episode is based on the novel 'Silas Marner' by George Eliot.