This project aims to harvest urban floodwater to revive palm tree gardens and expand urban green spaces. The calculations show that more than 65,000 cubic meters of floodwater can be harvest annually and 35 hectares of gardens can be revived with this water. The production of this amount of water through reverse osmosis (RO) desalination plants (the main source of water for the city) produces 435.5 tons of CO2. Moreover, palm gardens absorb 2,240 tons of carbon dioxide and produce about 630 tons of oxygen annually. In total 2675.55 tons of CO2 will be reduced annually, which equals the amount of CO2 produced by 446 cars.