Nairobi wins the prize for greenery with its acres of vegetation. Its verdancy is credited to the late environmentalist and Nobel prize winner Wangari Maathai, whose organisation Green Belt Movement planted tens of millions of trees.
Read MoreNairobi wins the prize for greenery with its acres of vegetation. Its verdancy is credited to the late environmentalist and Nobel prize winner Wangari Maathai, whose organisation Green Belt Movement planted tens of millions of trees.
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