Crystal tower aims to solve the problem of excessive carbon dioxide in the atmosphere, which aggravates the greenhouse effect a lot in the past 100 years. The crystal tower will catch CO2 by special batteries which have the material called "anthraquinone" will capture CO2 as they are charging, and release CO2 as they are discharging. To make sure there is enough electricity to charge batteries. There is a huge tesla coil system in the core of the tower to allow the whole CO2 capturing device to work well. Subsequently, the captured CO2 will be stored under suitable beds.