Saturday, 20 April 2019

Environment

Cool Roofs

A new study finds that making rooftops a light-reflective colour can reduce heat-related deaths and cool peak daytime temperatures by more than 3 degrees Celsius during heat waves.

Cities store more heat than the surrounding countryside due to the urban heat island effect. This makes cities more susceptible to the increasing number and intensity of heat waves under global warming.

New modelling by the University of Oxford found that introducing cool roofs across a city could prevent about a quarter of heat wave-related deaths and cut the need for air conditioning.

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