What's the right way to summit Everest? Photo: Unsplash / Kabita Darlami
Science correspondent Allan Blackman joins Kathryn to talk about concerns in the world of mountaineering and among the Nepalese government about a recent feat by four British climbers.
They traveled from London and summited Everest in less than a week - with the help of xenon gas.
How does it help at altitude? And a NIWA-led study has found New Zealand's native forests are more of a carbon sink than first thought.
And for the first time, Kiwi scientists have directly observed meltwater flowing under the West Antarctic ice sheet into the ocean - why does that matter?
Allan Blackman is a Professor of Chemistry, School of Science, Auckland University of Technology.
