How to Create the Future we want
Wednesday 25 March 2026 7.30pm (UK)
The Speaker: Halle Krieger
Halle is a PhD candidate and member of Prof Tim Lenton’s research group exploring tipping points in climate and society at the University of Exeter. She is studying how positive tipping points can drive rapid climate action. For her masters research (‘23), Halle identified early signals of an approaching tipping point in the UK automobile market from petrol-powered to electric vehicles, which she presented at the 2025 Global Tipping Points Conference.
Halle is especially interested in the collective processing of climate-related emotions (ie eco-anxiety) as a core condition for successful societal transformation. As a student experiencing these feelings herself, Halle is starting a dedicated space where students at Exeter can build emotional resilience as a foundation for communal action.
The Talk
Introduces the concept of positive tipping points – moments when small changes can trigger rapid, self-reinforcing shifts towards a desired outcome. Drawing on the scientific principles used to study climate tipping points in Earth systems, this talk will show how similar dynamics of change can ripple across societies and cultures to transform entrenched systems and social norms.
Halle will use historical examples of sudden societal change and present-day data from electric vehicles and the rise of renewable energy. The talk illustrates how desirable transformation can move from apparently impossible to inevitable. Designed to be both educational and empowering, this talk will invite you to think strategically about your own role in helping push the systems you’re part of towards positive tipping points.
Speak up for our Planet 