Show Notes
David Boldeman is joined by science journalist Ellen Phiddian to explore a deceptively simple question: how do scientists actually know the oceans are warming?
The conversation unpacks the global network of measurements that allow researchers to track heat across the world’s oceans, from early ship-based observations to modern satellite systems and autonomous Argo floats that dive thousands of metres beneath the surface.
Along the way, the episode explains why ocean heat content is one of the most important indicators of climate change, how scientists distinguish long-term warming from natural variability, and why the oceans absorb the vast majority of the excess heat in the Earth’s climate system.
It is a story about evidence, measurement and the remarkable ability of modern science to take the temperature of a changing planet.
For the latest research and discoveries visit https://connectsci.au/news
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More from Ultramarine: the science of our oceans and waterways
This is an episode from our new podcast, It Starts With... available on Apple, Spotify and ConnectSci.
David Boldeman speaks with CSIRO marine biogeochemist Dr Elizabeth Shadwick about one of Australia’s most important long-running ocean climate observation programs, the Southern Ocean Time Series south of Tasmania.
Host David Boldeman speaks with ConnectSci science journalist Imma Perfetto about new research that has, for the first time, measured the hearing range of humpback whales in the wild.
Four and a half thousand years ago, people were already navigating the dangerous waters of the High Arctic.
We travel nearly ten kilometres beneath the surface of our own planet to explore one of the most extraordinary discoveries in modern science.