Oceanography podcasts

Alexandra Delbot reçoit Laurent Chauvaud et Frédéric Olivier pour explorer les coquilles de bivalves comme archives des milieux marins. La discussion explique comment les stries de croissance et leur composition chimique renseignent sur l’âge, la température, la salinité et les climats passés. Elle aborde aussi les pollutions, les perturbations acoustiques et les réponses biologiques des mollusques, envisagés comme indicateurs des changements de leur habitat.

Hosted by Alexandra Delbot

The Science Show examines mineral nodules formed around fossil shark teeth on the deep-sea floor and the ecological risks of exploiting them. The programme also considers plant responses to climate change, debates over introduced species, and the contributions and limitations of three influential scientists.

Hosted by Robyn Williams, Belinda Smith

Chris Smith and Rachael Ralph explore the mechanisms and forecasting of El Niño and its consequences for weather, livelihoods and health. Contributions from Aidan McGivern and Peter Gibbs explain the climate dynamics; Vicky Pryce discusses economic disruption; Rachel Tolhurst and Teresa Zakaria examine health vulnerabilities and preparedness. The episode connects climate science with the decisions facing public-health services and communities.

Hosted by Chris Smith, Rachael Ralph

This episode examines whether manufacturing pharmaceuticals and biomedical materials in microgravity can become practical, with Julia Vaz and Michael Greshko. Kevin McLean speaks with Mads Peter Heide-Jørgensen about narwhals collecting oceanographic measurements that reveal Atlantic warming in East Greenland fjords. In the book segment, Angela Saini interviews Priyambada Jayakumar about her biography of agricultural scientist M. S. Swaminathan. The publisher provides a full transcript and external audio.

Hosted by Sarah Crespi, Angela Saini

Nature reporters explain why record ocean temperatures associated with an intensifying El Niño could weaken marine carbon sinks. The episode also covers radiation protection for astronauts, thunder-based underground geology and experimental mitochondrial injections for vision loss.

The hosts discuss nitrogen fixation in a marine alga and the evidence for a nitrogen-fixing organelle. Related topics include plastic pollution, antimicrobial resistance and the rumen microbiome. The episode links microbial evolution and physiology with marine nutrient cycling.

Hosted by Vincent Racaniello, Michael Schmidt

This bonus crossover from Inflection Point examines carbon-capture approaches, their history and the limits of their contribution to climate mitigation. The discussion includes ocean-based approaches and the chemical processes involved. It is the publisher’s syndicated episode in the Stereo Chemistry feed, rather than a separate new recording.

Nature staff revisit the landmark cloning of Dolly the sheep from an adult cell and discuss the first direct observation of ocean-floor crust being created.

Jason Rodriguez discusses piloting remotely operated vehicles on scientific expeditions, including technical problem-solving, mid-water observations and collaboration with researchers. He describes a career moving from aviation electronics through offshore work into ocean science. The full episode also includes research updates from Alan Jamieson and Thom Linley. This listing uses the full episode and its publisher-page date, rather than the separately released PRESSURISED edit.

Hosted by Alan Jamieson, Thom Linley

Brad Gemmell discusses how changing environmental conditions affect the behaviour and ecology of small marine organisms. Topics include ctenophore predation, diatoms and ocean carbon cycling, and the role of upside-down Cassiopea jellyfish as ecosystem engineers. The conversation connects organismal physiology and movement with broader changes in marine ecosystems.

Hosted by Marty Martin

Esther Sumner describes direct observations of turbidity currents and the challenge of instrumenting active submarine canyons. Smart boulders and acoustic current measurements reveal how these large, long-lasting underwater flows transport sediment. The discussion includes an underwater robot’s accidental encounter with an active current in California’s Mendocino Canyon.

Eirik Valseth discusses mathematical models of weather and storm surges and the computations used to make forecasts. Conversation in Norwegian.

Nina Jensen discusses ocean warming, acidification and other human pressures on marine environments. Conversation in Norwegian.