Our Changing World for Thursday 13 March 2014

9:46 PM.Irish actor Aidan Dooley brings to life the stories of Tom Crean, an unsung Antarctic explorer. Read more Audio

9:18 PM.Greater Wellington tests water quality at selected river and coastal sites during the summer months Read more Audio

9:06 PM.Blenheim-based company CarbonScape is preparing to make green coke for New Zealand's steel industry. Read more Audio