International Journal of Engineering and Information Systems (IJEAIS)   Year: 2023 | Volume: 7 | Issue: 1 | Page No.: 1-4 The Impact of Green Riyadh Project on Temperature Download PDF Abdullah Alfayez, Hesham AbaNumay, Mohammad AboHaimed, Waleed Abdelkarim, Omer Alrwais Abstract: Kingdom of Saudi Arabia and its capital, Riyadh, are undergoing huge mega-projects. Of them, are The Middle East Green Initiative (regionally) and the Green Riyadh Project (specifically for the capital). In this research, we rely on Geographic Information Systems (GIS) to study the impact of Green Riyadh Project on surface temperature of Riyadh City. We have found a very small effect of trees on temperature (each increase in one unit of trees decreases temperature by 1%).