Green roofs, lush vegetation, natural habitats, eco-friendly buildings, large windows, clerestory windows, skylights, solar chimneys, windcatchers, ventilation towers, external shading devices, overhangs, louvers, jalousies, operable walls, breathable materials, cross-ventilation, stack effect, buoyancy-driven ventilation, cooling towers, evaporative cooling systems, misting systems, desert landscape, hot sunny day, clear blue sky.