The construction industry is one of the biggest polluters in the world, consuming half of the planet’s natural resources, 40 percent of its energy and 16 percent of its water, as well as generating greenhouse gas emissions and waste. But here in France, the company Bat'Ipac has found an alternative: building with recycled cardboard instead of concrete. FRANCE 24's Alexandra Renard and Aurore Cloé Dupuis report.