Lisa the Tree Hugger/References

Cultural references

 * Lisa's quest to save Springfield's oldest redwood tree by living in it is a reference to the real-life story of Julia Butterfly Hill and a redwood tree called "Luna". Hill lived in the tree for two years and succeeded in preventing it from being cut down by loggers. The details of Lisa's day-to-day existence in her tree (such as hauling supplies up to her tent by a rope) are very similar to Hill's.
 * When the giant log destroys Kentucky Fried Panda, Homer exclaims "No! It was finger-ling-ling good!", which is a reference to Kentucky Fried Chicken and its slogan, "Finger-Lickin' Good", and to either Ling-Ling or Ling Ling, both of whom were famous giant pandas.
 * When The Rich Texan said that he would want 100 simeleons. Simoleons are actually the currency in the best-selling game-The Sims.

Goofs

 * Despite her death in "Alone Again, Natura-Diddily", Maude Flanders is seen in the group of people.
 * Lenny Leonard has gray hair in the group of people