《An urban heat island in London》 - 免费有声读物

An extended heatwave continues for London, the region and most of the province. Experts say city and suburb dwellers have it much worse than their counterparts living in the countryside due to a phenomenon sometimes referred to as 'urban heat island effect.' The Climate Atlas of Canada says the urban heat island phenomenon happens when paved surfaces amplify and trap heat far more effectively than natural ecosystems and rural areas. On a sunny day, paved surfaces can be 27 to 50 C hotter than the air.