Innovative Green Cooling Solutions to Combat Rising Global Temperatures
- Rising global temperatures driven by climate change and the El Niño weather phenomenon have intensified the search for alternative cooling technologies.
- Speaking on the sidelines of the UN meeting, United Nations Environment Programme (UNEP) climate change division director Martin Krause stated that a scarcity of funding remains the primary...
- As traditional cooling systems face mounting scrutiny, various alternative gadgets and apparel have emerged on the market to address rising heat stresses for both indoor and outdoor spaces.
Rising global temperatures driven by climate change and the El Niño weather phenomenon have intensified the search for alternative cooling technologies. During a recent meeting in Singapore, the United Nations urged representatives from approximately 60 countries to pivot away from conventional air-conditioning toward greener cooling strategies due to the high energy demands and potent greenhouse gas refrigerants associated with standard systems.
Funding Challenges in the Global Cooling Market
Speaking on the sidelines of the UN meeting, United Nations Environment Programme (UNEP) climate change division director Martin Krause stated that a scarcity of funding remains the primary hurdle for scaling up innovative measures. A 2024 report jointly issued by UNEP and the International Finance Corporation projects that the market for cooling solutions in developing economies will expand from roughly $300 billion to at least $600 billion annually by 2050.
Innovative Cooling Gadgets and Consumer Technology
As traditional cooling systems face mounting scrutiny, various alternative gadgets and apparel have emerged on the market to address rising heat stresses for both indoor and outdoor spaces.
The Ecoline Solar air-conditioner, developed in Singapore by co-founder Colin Chia’s firm, utilizes up to 55 per cent less energy than conventional units. While standard air-conditioners rely solely on electricity to warm refrigerants, the Ecoline system captures solar heat alongside ambient air heat to partially warm the refrigerant.
For spaces unable to accommodate standard air-conditioning, portable air coolers draw in surrounding warm air, pass it through a water-soaked cooling pad, and exhaust cooled air via a fan to target specific individuals rather than entire rooms. Meanwhile, Japanese apparel brand Freeze Tech offers cooling innerwear coated with sugar alcohol. Activated by moisture or perspiration, the fabric triggers a chemical reaction intended to draw body heat away, lowering a wearer’s temperature by up to 9 degrees Celsius across more than 50 wash cycles. A Singapore construction company is currently trialling this apparel for outdoor workers.
Portable Personal Cooling Devices
Additional personal cooling devices gaining visibility include waist clip-on fans designed to resemble portable chargers, blowing air against the torso to dry perspiration. In Japan, fan-embedded work gear known as fan-jakketo—which features circular fans attached to uniforms and trousers—has remained popular since its introduction in the early 2000s.
Horseshoe-shaped portable neck fans are also utilized to direct airflow toward the neck and face. For nighttime relief, cooling pillows incorporate cooling gel alongside tiny air pockets to facilitate constant airflow and draw heat away from the user as ambient temperatures rise.