Science correspondent Allan Blackman joins Kathryn to look at the newly-announced winners of the Nobel Prize for Physics, new research which suggests planting trees in dry areas can actually help increase atmospheric warming and DNA has helped crack a century-old mystery about New Zealand's only extinct freshwater fish.
Allan Blackman is a Professor of Chemistry, School of Science, Auckland University of Technology
Photo: Nobel Prize, Otago University, The Technion–Israel Institute of Technology and Weizmann Institute of Science,
