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    Paris building 'eco-neighborhood' ahead of climate summit

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Paris building 'eco-neighborhood' ahead of climate summit

Every rooftop will have a vegetable garden, and there will be five hundred types of plants. Christiane Amanpour has the story from Paris.

Paris building 'eco-neighborhood' ahead of climate summit

Every rooftop will have a vegetable garden, and there will be five hundred types of plants. Christiane Amanpour has the story from Paris.