Why this Danish city is rebuilding itself out of recycled rubble

The 2014 European Green Capital is a city where four out of 10 people commute by bike. It has more than 390km of cycle lanes and has set itself the ambitious goal of becoming carbon neutral by 2025. But now the city is moving to the next level of green transition by asking: what if you could recycle whole buildings?
Copenhagen, Denmark
Issue: Sustainable Development Goals Typology: Arenas