Our Changing World for Thursday 6 August 2015

9:46 PM.Environmental scientist Lin Roberts argues that nature's ecosystem services are good for our well-being as well as the planet Read more Audio

9:34 PM.New Plymouth has more pockets of urban bush than any other NZ city, and ecologists study them to improve the success of ecological restorations Read more Audio

9:06 PM.Geologists are using a cannon, a trebuchet and silly putty wrapped in condoms to investigate volcanic ballistics and better understand volcanic eruptions Read more Video, Audio