Siemens has developed an interactive tool that guides cities on how to achieve their environmental targets. Siemens engineers are already using the 'City Performance Tool' to advise municipalities around the world.
Plans to rapidly cut coal use in China have been halted after households were left without heat. But air quality appears to have improved, despite the setback.
With more of the world now living in urban as opposed to rural areas, the need for sustainable infrastructure has never been greater. Some cities are rising to the challenge in interesting ways.
More than two-thirds of the world's population is expected to live in cities by 2050. Officials meeting at the United Nations Habitat III conference in Quito have come up with a new agenda to help urban centers cope.
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