What happens to all those acres of white plastic wrap that protect building sites? Ross Inglis talks with two people who know: Too much of it goes to landfill, and they’re doing something about it.

In this episode: Tina Wieczorek (right) is the CEO of the industry organisation Scaffolding, Access and Rigging New Zealand, or SARNZ, and Penny Thomson, a research manager and designer with the Environmental Solutions Research Centre, part of Auckland’s Unitec Institute of Technology.