This book explores the modeling, experimentation, and application of Earth-to-Air Heat Exchangers (EAHE) as a sustainable cooling solution in arid and semi-arid regions. Focusing on Algeria's geothermal context, it integrates theoretical background, material selection, and statistical optimization to improve system efficiency. Through experimental setups, response surface methodology, and case studies, the book highlights how shallow geothermal energy can be harnessed to reduce energy consumption, support agriculture, and enhance thermal comfort in buildings-offering an environmentally friendly alternative to conventional cooling technologies.