21 Nov 2013

Our Changing World - phosphorus

From Jesse Mulligan, 1–4pm, 3:29 pm on 21 November 2013

The world's supply of terrestrial phosphorus will run out in about 50 years - but at the same time lots of phosphorus ends up in effluent ponds around the country and is sent to landfill. Alison Ballance meets two environmental engineers from Massey University who think that algae might be a smart way to extract and reuse that valuable lost phosphorus.