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Demand for air con set to triple by 2050, warns UN Estelle.Bronkhorst Wed, 11/12/2025 - 12:00 BELEM - Global demand for air conditioning could more than triple by 2050, the United Nations warned, calling for more sustainable cooling solutions.The UN Environment Programme said demand could surge due to increases in population and wealth around the world, combined with more extreme heat.Rising demand for more polluting and inefficient cooling systems would almost double cooling-related greenhouse gas emissions over 2022 levels , said UNEP.UNEP launched its Global Cooling Watch 2025 report on the sidelines of the COP30 UN climate summit in Belem in the Brazilian Amazon. Installed cooling capacity is on a trajectory to triple by 2050... Yet billions will still lack adequate protection from heat. We must reimagine cooling -- not as a source of emissions, but as a cornerstone of heat resilience and sustainable development, it said.The most rapid growth in cooling demand is projected in Africa and South Asia. As deadly heat waves become more regular and extreme, access to cooling must be treated as essential infrastructure alongside water, energy and sanitation, UNEP chief Inger Andersen said in a statement. But we cannot air condition our way out of the heat crisis, which would drive greenhouse gas emissions higher and raise costs. UNEP highlighted so-called passive cooling options, including better wall and roof designs, shading, solar off-grid solutions and ventilation.The potential impact on indoor temperatures from passive cooling strategies range from 0.5 to 8 degrees Celsius. Passive, energy efficient and nature-based solutions can help meet our growing cooling needs and keep people, food-chains and economies safe from heat as we pursue global climate goals, said Andersen.The Cooling Report suggested adopting such measures could reduce emissions to 64 percent below the levels otherwise expected in 2050.

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