A QR Code too far? Do we need to give people a sense of ownership to care for trees in public places? The District of Columbia’s Department of Transportation, have done just that via sticking QR codes to trees. More info .
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A QR Code too far?

Do we need to give people a sense of ownership to care for trees in public places?
The District of Columbia’s Department of Transportation, have done just that via sticking QR codes to trees. More info .

Source: springwise.com