It was released on October 28, 2008 via Suburban Noize Records.

Production was handled by Mike Kumagai, P-Nice, and member Daddy X, who also served as executive producer together with Kevin Zinger.

It features guest appearances from BJ Smith, Brother J, Tech N9NE, Sky Blue and The Dirtball, as well as contributions from Ryan Fatal, Eddie Tatar, Joe Tatar, Aaron Abeyta, Ronnie King, P Bass and Ernie Longoria.

AllMusic reviewer David Jeffries wrote that "If you haven't figured it out from the album's title, the song titles, or even the band's name, The Green Album is a pro-weed album from aging cottage industry insiders known as the Kottonmouth Kings.

[...] [The album] finds them a bit more out of touch with what's happening in the rest of the music world".