GENEVA—Warming climates and especially the rise of a global middle class are going to send new populations in search of artificial cooling. That is one conclusion of a new report issued this week by the Intergovernmental Panel on Climate Change (IPCC), a United Nations scientific panel that periodically reviews the scientific bases for climate change. Throughout the developing world, rising incomes and warming temperatures will boost energy demand for residential air conditioning from nearly 300 terawatt-hours (TWh) in 2000 to about 4,000 TWh in 2050 to more than 10,000 TWh in 2100, according to the report.
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