Passive subambient cooling and atmospheric water nexus.
review · Level V
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- Record sourced from PubMed, PMID 42265109.
- Also identified by DOI 10.1038/s41467-026-74110-z.
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Abstract
Accelerating global warming has intensified the need for sustainable, low-energy cooling strategies. Subambient radiative cooling is a compelling solution, passively dissipating heat to outer space via mid-infrared emission without external energy input. However, its performance depends on atmospheric conditions, especially low humidity and clear skies. Although its global potential is well-established, its performance under typical weather conditions and integration with sustainable water cycling technologies remain underexplored. This review examines how radiative cooling can be integrated with water-related technologies-including atmospheric water harvesting, sustainable agriculture, and radiative-evaporative cooling-to reduce thermal loads while improving water sustainability.