It’s estimated around 70% of Tokyo’s carbon comes from its structures. This iconic city has pioneered the world’s first emission-reduction programme for buildings and has partnered with Kuala Lumpur to share knowledge and ideas for widespread energy efficiency.

This content was produced for C40 Cities by BBC StoryWorks as part of the Transforming Cities series. Learn more about Transforming Cities: www.transformingcitiesseries.com

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