Radio New Zealand - Te Reo Irirangi o Aotearoa

Where does personality come from, and what makes us who we are? Paul Broks, senior clinical lecturer at Plymouth University; and Dr Mark Lythgoe, neurophysiologist and senior lecturer in radiology and physics at the Institute of Child Health and Great Ormond Street Hospital. (53′28″)

How can we avoid the fate of being reduced to a few breeding pairs in the Arctic? Lord Martin Rees is President of the Royal Society, Master of Trinity College, and Professor of Cosmology and Astrophysics at the University of Cambridge;  and Dr James Lovelock, scientist, author and environmentalist. (49′46″)

What are quarks and how can you see them at the heart of the subatomic world? And what does quantum mechanics have to do with the mystery and origins of life? Frank Close, OBE, Professor of Physics at the University of Oxford; and Johnjoe McFadden, Professor of Molecular Genetics at the University of Surrey. (39′15″)

How can we reduce our reliance on oil and over-production of greenhouse gases to avoid catastrophic climate change? Sir David King, the British Government's Chief Scientific Adviser; and Douglas Parr, Chief Scientist at Greenpeace UK. (41′46″)