Sponges, urban forests and air corridors: How nature can cool cities

City in a Forest

Forest

An aerial view shows wild elephants walking in forest 

(Photograph:AFP)

City in a forest

Handout photo showing a planned ?forest city?, Liuzhou forest city, in southern China. Courtesy of Stefano Boeri Architetti.

(Photograph:Reuters)

City in a Forest

Handout photo showing a planned ?forest city?, Liuzhou forest city, in southern China. Courtesy of Stefano Boeri Architetti.

(Photograph:Reuters)

City in a Forest

Handout photo showing a planned ?forest city?, Liuzhou forest city, in southern China. Courtesy of Stefano Boeri Architetti.

(Photograph:Reuters)

City in a Forest

Handout photo showing a planned ?forest city?, Liuzhou forest city, in southern China. Courtesy of Stefano Boeri Architetti.

(Photograph:Reuters)

City in a Forest

Handout photo showing a planned ?forest city?, Liuzhou forest city, in southern China. Courtesy of Stefano Boeri Architetti.

(Photograph:Reuters)