cool island
Urban heat island mitigation term: a park, green space, or water feature that remains cooler than surrounding built-up areas.
都市のクールアイランドとして、この公園は重要な役割を果たしている。
As a cool island in the city, this park plays an important role.
Variant with interpunct; less common in running text.
Loanword from English 'cool island', used in urban climatology and environmental planning.