7 May 2012 - Kenyan architects are designing buildings with green roofs covered in vegetation to cool their interiors, conserve energy and water, and help curb greenhouse gas emissions.
The capital Nairobi is experiencing growth in green-roofed construction, according to architects who specialise in the climate-friendly technology.
Some of these gardens in the sky - which require a flat roof and replace the vegetation destroyed when ground is cleared for construction - boast trees as well as grass and other plants.
With urban trees and nearby forests being cut down for firewood and new development, green roofs are increasingly seen as a means of restoring city environments, while their plants suck up planet-warming carbon dioxide.
The East African Coca Cola Company headquarters on the outskirts of downtown Nairobi has led the way. Completed in 2008, and located in a smart suburb hosting several embassies, it is one of the most expensive buildings in Africa. read more>>>
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