Our Changing World for Thursday 19 May 2016

9:45 PM.Auckland diabetes specialist Robyn Toomath argues that society is to blame for the rise in obesity, and Massey University sociologist and runner Andrew Dickson shares his experience of being a big… Read more Audio

9:35 PM.Lipoprotein(a) increases the risk of heart disease in 20% of people and doesn't respond to diet or exercise, so the hunt is on to find a treatment. Read more Audio

9:20 PM.Later in 2016, an international group will decide if the Holocene has given way to a new geological period marked by our impact. NIWA geochemist Helen Bostok gives a Southern Hemisphere perspective on… Read more Audio

9:06 PM.Use your ears and spend time on your own just listening and observing birds - good advice from one of the world's best known bird-watchers and ex-Goodie, Bill Oddie. Read more Audio