Summertime is the time for festivals. In Europe alone, more than 500 multi-day music festivals take place each year between May and September, attracting millions of visitors. Most of them will camp on the festival site itself. But one in four simply leave their weekend accommodation behind at the end of the festival. Taking down the tent and packing it away seems like too much hard work after a weekendâ€™s partying. Every year 25,000 tents are abandoned at festivals in the Netherlands alone. Thatâ€™s a lot of rubbish. And thatâ€™s exactly what the Dutch design team Wout Kommer and Jan Portheine thought. In response, they came up with a 100% recyclable tent made from cardboard.