Demand for cooling systems in Africa is growing. But regulating the industry is a struggle

ABUJA, Nigeria (AP) - As the sun sets in the Nigerian capital of Abuja, Ahmed Bukar turns on his home air conditioner for a blast of warm air. The charge valve on the outdoor unit is leaking the refrigerant gas that powers the unit. A technician recently helped him refill the air conditioner with gas, but he didn't test for possible leaks.

In Abuja and across Nigeria, air conditioners are popping up out of walls as the appliance transforms from a middle-class luxury to a necessity in an increasingly warm climate. The industry is governed by regulations that prohibit the ...