Copenhagen wants green tourists

‘Tourist, go home’ is the message in more and more European cities. Growing concerns about overtourism have sparked heavy protests in cities like Amsterdam, Venice and Barcelona, where  floods of visitors outnumber the local population. Copenhagen is trying to stay ahead of the local resistance and urges  tourists to contribute to the city’s environment.

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https://nos.nl/artikel/2580036-denemarken-wil-toerist-die-steentje-bijdraagt-gratis-varen-en-afval-opvissen