By Haitham El-Tabei Mohammed Sayed wipes sweat from his brow as he repairs another broken air conditioning unit at the height of the Saudi summer, his most stressful time of year. The 28-year-old Sudanese national and his fellow technicians clock long hours as temperatures in the capital Riyadh clear 40 degrees Celsius (104 Fahrenheit) on a daily basis, highlighting the Gulf kingdom’s dependence on machines the government is trying to make less environmentally taxing. “The […]