How do we reduce construction waste in a building boom?

The Green Building Council is calling for more to be done to stop construction waste going to the dump as the building boom ramps up. Auckland Council estimates up to 600,000 tonnes of building and demoltion waste is going to landfill each year. With the government's KiwiBuild plan set to add a further 50,000 homes to the city's workload over the next 10 years, the amount of waste is expected to skyrocket. Tom Furley has the story.