Our growing population has a huge number of impacts, but the simplest and most pressing is that we have more mouths to feed than ever before. At the same time, though, climate change is threatening farmland worldwide. That means crops like wheat, which account for 20% of daily calories consumed worldwide, are plateauing.

Enter: Richard Trethowan and the Plant Breeding Institute. Richard and his team are working on something called hybrid wheat, which will be more robust and productive than the regular plant. They’re trying to make food that’s healthier, easier to grow, and that will feed more people.

Richard explains why we’ve never been able to make hybrid wheat before, why it’s so crucial to the future of our planet, and how over a century of forward-thinking research has laid the foundation for the work he’s doing today.

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The Solutionists is a podcast from the University of Sydney, produced by Deadset Studios. Keep up to date with The Solutionists by following @sydney_uni on Facebook and Instagram, and @sydney.edu.au on Bluesky.

This episode was produced by Liam Riordan with sound design by Jeremy Wilmot. Supervising producer is Sarah Dabro. Executive editors are Kellie Riordan, Sladjana Rstic, and Mark Scott. Strategist is Ann Chesterman.

This podcast was recorded on the land of the Gadigal people of the Eora nation. For thousands of years, across innumerable generations, knowledge has been taught, shared and exchanged here. We pay respect to elders past and present and extend that respect to all Aboriginal and Torres Strait Islander people.