Our Changing World for Thursday 3 March 2016

9:45 PM.Scientists reveal the climate history hidden in the mud at the bottom of Lake Ohau, reaching back to the end of the last Ice Age some 18,000 years ago. Read more Audio, Gallery

9:36 PM.Environment Minister Nick Smith is championing new legislation for marine protected areas, and Raewyn Peart from the Environmental Defence Society has some thoughts on its strengths and weaknesses. Read more Audio

9:20 PM.A book of poetry celebrates the inspiration poets, scientists and the Uawa/Tolaga Bay community have drawn from the 2012 Transit of Venus. Read more Audio

9:06 PM.Sunkita Howard is developing an electrical deterrent to discourage spiny dogfish from getting caught on fishing hooks used in the ling longline fishery. Read more Audio, Gallery