While Earth Day wasn't officially recognized as a holiday, Animalia could still have some fun with it.
One discovery that was shared with the world was the discovery of an oak tree that was more than 700 years old. This was named the official Peace Tree of Animalia, and the focal point for the newer part of the town. Animalia was already past the "large town" size and was well on it's way to the "small city" size. It was optimistically theorized that Animalia would become a metropolis in only twenty years with it's current rate of growth.
Although a decent number of aquatic Animalians were moving to Mieni Atoll, the number of Project Phoenix volunteers, both human and animal, made sure that this wasn't a big drop in population. This would also make Mieni Atoll read "large town" size quicker.
There were also previews of new, "greener" technologies that were planned to be included for "Animalia Metropolis", such as solar powered streetlights, and skyscrapers with Bird Animalian landing pads. Another thing that was showed was newer developments in both wastewater treatment and soil purification, the second being developed both for cleaning soil ruined by disasters and pollution as well as extraterrestrial soil decontamination/agricultural developments.
There was also a tour organized of The Burrows, the only apartment complex that was not only completely underground, but was also carved out of tufa rock by "hand" by burrowing Animalians. Visiting geologists determined that during the Mesozoic era, there was a large volcano in the southwest of the inland sea that covered most of Central North America. The volcanic activity also explained why gold was found while burrowing out new apartments in The Burrows.
The Worldmeet Glade also got in on the spirit with gambling chips costing only half of what they were worth, and half-price visits to the hot spring caverns beneath the casino proper.
While not as big as other expositions, Earth Day in Animalia was deemed a success to many, both as a way of traditionally celebrating Earth Day, celebrating it in a new way, and preparing for the IAC.