In Amsterdam, clean air gets free wifi from trees

In Amsterdam, clean air gets free wifi from trees

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Fresh, clean air is one of the quickly diminishing commodities most city dwellers crave on a daily basis, and we have seen air purifying billboards and navigation apps help urbanites breathe better. Based in Amsterdam, TreeWiFi’s smart birdhouses let residents know about the air quality of their neighborhood, and if it is clean enough, they get free wifi.

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