Green flat roofs are good for the air and for biodiversity

Biodiversity in cities can be enhanced by creating more “green roofs” – roofs that are covered in vegetation. They improve air quality and insects can use them as stepping stones from one green patch to another and so enlarge their habitat. (Raffaella Rossello, swissinfo.ch)

This content was published on September 14, 2010 - 09:57

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Raffaella Rossello

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Concerns raised over disappearing species

This content was published on May 22, 2009 It is estimated that around 100 species become extinct each day worldwide – a threat which also affects Switzerland. Invasive alien species are making the problem worse. It is difficult to imagine a meadow with flowers or a lake without fish, but voices are warning that this may become a reality. “The earth’s biodiversity is…

Read more: Concerns raised over disappearing species

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