Planetary Boundaries – Talks, presentations and more

In February 2026, Lewes Climate Hub hosted a season of talks and discussion about the Planetary Boundaries – the biophysical limits the Earth needs to operate within to provide a stable environment for humanity and other life.

Explore the talks, displays and discussions that came out of this season below. With special thanks to season lead Scott Donaldson, and Bruce Phillips of the Planetary Boundaries Science Lab at the Potsdam Institute in Germany.

What are the Planetary Boundaries?

Explore and download Lewes Climate Hub’s information graphics about the nine Planetary Boundaries and how they interact. 

Planetary Boundaries – Are We Crossing The Line? Talk with Bruce Phillips

Bruce Phillips of the Planetary Boundaries Science Lab at the Potsdam Institute shows how the stability of our world depends on multiple Earth systems working together, and right now, human activity is pushing many of them beyond safe limits.

See a written summary of Bruce’s presentation here.

Breaking Boundaries: Post-screening discussion

As part of the Planetary Boundaries, we screened the powerful documentary film ‘Breaking Boundaries: The Science of Our Planet’ with David Attenborough and scientist Johan Rockström. See highlights from the discussion that followed. [asking Kceniya to send link]

Talk: The Financial Cost of Crossing Planetary Boundaries

What are the financial consequences of crossing the nine Planetary Boundaries? And do we fully understand the powerful role that nature can play in supporting a thriving but sustainable economy? See highlights from this talk by biodiversity & finance research fellow Dougal Fleming. [asking Kceniya to send links]