Overview
- Researchers say widespread use of air conditioners expels heat outdoors and can raise temperatures in dense city neighborhoods by up to about 2.5°C, creating a feedback loop of more cooling and more heat.
- The International Energy Agency projects energy demand for room cooling could more than triple by 2050, and current estimates put the cooling sector at roughly 10–20% or more of global electricity use today.
- This mid‑July heat surge has driven sharp consumer demand for portable and mobile‑split units, producing sell‑outs, steep retailer promotions and extreme price swings for popular models such as the Midea PortaSplit.
- Technology responses include MIMiC Systems' solid‑state thermo‑electric modules, which after an August 2025 pilot are now in small‑series production and are being pitched as refrigerant‑free but remain costlier than conventional units.
- Policy and practical solutions promoted by experts focus on cutting demand through insulation, shading and urban greening, switching to lower‑GWP refrigerants, expanding reversible heat‑pump cooling where feasible, and pairing cooling with low‑carbon electricity like rooftop solar.