“Climate change is no longer a challenge to avoid - it is a challenge to navigate.”
From Geological Time to Geopolitical Crisis
In this episode, Craig speaks with climate researcher, writer, and geopolitical analyst Ben Shread-Hewitt about the collision of climate change, geopolitical instability, and what he calls the emerging Overshoot Era. Drawing on his work on derailment risk, climate tipping points, and global systems change, Ben argues that climate change can no longer be understood as a future threat. It is a present reality that is reshaping politics, economies, infrastructure, and the built environment in real time.
Ben’s unusual background in both geology and climate policy provides a unique perspective on today’s challenges. Viewing current events through the lens of deep geological time helps reveal the extraordinary speed of human-driven climate change and the immense scale of the transformations now underway.
The conversation explores how climate impacts and geopolitical fragmentation increasingly reinforce one another. From droughts disrupting global trade routes to melting Arctic sea ice creating new geopolitical flashpoints, Ben argues that climate change and the breakdown of the post-war international order can no longer be viewed as separate issues.
Understanding Derailment Risk
“Climate progress can be derailed by the very impacts it seeks to prevent.”
A central theme of the episode is Derailment Risk - the idea that escalating climate impacts can undermine our ability to respond effectively to climate change.
Ben explains that traditional climate planning assumed successful mitigation would prevent the worst impacts. Today, however, many impacts are already occurring and can actively disrupt mitigation and adaptation efforts. Examples include:
- Forests shifting from carbon sinks to carbon sources
- Extreme weather diverting resources away from climate investments
- Political instability generated by climate disasters
- Supply chain disruptions affecting renewable energy deployment
- Public backlash when governments fail to prepare communities for climate impacts
The discussion also examines how adaptation and mitigation must increasingly be pursued together. Ben points to examples such as Passive House construction, resilient urban design, and climate-adapted infrastructure that simultaneously reduce emissions while increasing resilience.
The Overshoot Era and the Challenge of Navigation
“How do we navigate a storm we can no longer avoid?”
Ben argues that societies must simultaneously:
- Manage unavoidable climate impacts
- Continue reducing emissions
- Strengthen resilience
- Build public support for difficult decisions
- Maintain democratic institutions under increasing stress
For architects, planners, engineers, and policymakers, this means designing for a world where climate disruption is no longer hypothetical but a permanent planning condition.
Why Fairness Matters in the Climate Transition
“Justice is not optional - it is a resilience strategy.”
Ben warns that climate action which ignores communities, livelihoods, or local impacts can generate backlash that ultimately undermines climate progress itself. Whether discussing critical mineral extraction, renewable energy deployment, or climate adaptation projects, he argues that fairness and community participation are essential components of successful climate policy.
Book Recommendations from Ben Shread-Hewitt
- The Long Heat – Andreas Malm & Wim Carton
- The Deluge – Stephen Markley
- Tortilla Flat – John Steinbeck
A Call to Action
Updating Our Thinking for a Changed World
Ben's message is that we must update our understanding of the world we now inhabit.
Climate change is no longer primarily about preventing future impacts. It is about navigating a future in which some impacts are already unavoidable while continuing to prevent far worse outcomes.
For professionals working in the built environment, this means designing systems, communities, and infrastructure that can withstand disruption while advancing a more resilient and just future.
Bio
Ben Shread-Hewitt is a climate researcher, writer, and analyst whose work focuses on the intersection of climate change, geopolitics, systems risk, and societal resilience.
His research has contributed to the development of the concept of Derailment Risk, examining how climate impacts can undermine the policies and systems designed to address them. He is also co-creator of the documentary podcast Overshoot: Navigating the World Beyond 1.5°C and author of the Geopolitical Climate newsletter, where he explores the interaction between climate breakdown, resource competition, and the changing global order.
His work seeks to help governments, businesses, and communities understand the emerging risks and opportunities of a rapidly changing world.
Where You Can Reach Ben
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