Nudge Nudge

Why fear won’t always persuade

Aug 3, 2026 · 27m

Summary

Host Phil Agnew interviews climate scientist Jay-Yin Zhao and happiness researcher Liz Dunn about their book, *Leave the Lights On*. They argue that fear-based climate messaging fails to inspire action, whereas framing sustainable choices as sources of happiness is effective. The episode explores behavioral nudges for food and travel, such as using positive language and social proof, and reveals that charitable spending boosts happiness more than personal consumption.

Topics discussed

Introduction: Heatwaves and the failure of doom and gloom messaging Guests introduce themselves and how they started collaborating Why fear fails and positive reinforcement works for climate action Using traffic light icons to nudge lower carbon food choices The power of ease and social mimicry in dietary habits Epicurean language and scarcity to enhance food enjoyment Transport happiness: Biking, carpooling, and reducing commute misery The TED Mystery Experiment: Spending money on others boosts happiness Conclusion: Summary of tips and bonus episode announcement
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