What is the Urban Heat Island effect and Urban Surface Roughness?

Greenspace, blue space, and wind currents

Knight-rider Street City of London. Image — Bashereyre, Wikimedia Commons. File: Knightrider Street City of London.JPG — Wikimedia Commons.

Heat in cities can be reduced by green space, blue space and by allowing wind currents caused by an urban rough surface to mix cool air into a city’s urban canopy layer.

Surprisingly, rather than the leafy species, Coniferous species were found to reduce the…