Some of the most significant reductions came from London, Berlin, and Madrid, which averaged around 30% reductions, while Copenhagen lowered emissions by a dramatic 61%, according to a new analysis published by a coalition of cities known as C40.
The concept of 'junk playgrounds' originates from Copenhagen. In 1945, Marjory Allen, a British landscape architect visited the city and was amazed by the boost in self-confidence that the children using these playgrounds exhibited.
