Rafe Pomerance, who died on May 21, 2026 at age 79, spent nearly five decades trying to make the world take climate change seriously before it was too late. I last spoke with him at… Read More »Rafe Pomerance 1946 – 2026: The Man Who Rang the Alarm — And Never Stopped
Activist Clare Farrell’s current framing of the climate crisis– on confronting political paralysis and urging radical collaboration between grassroots movements for a just, democratic response to rising global threats. This episode, with Extinction rebellion cofounder,… Read More »Staring Down The Abyss: Extinction Rebellion’s Clare Farrell is Determined– “We Are Being Governed By Absolute Idiots!”
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In this climategenn episode I speak with climate policy analyst and Research Director at the Breakthrough National Centre for Climate Restoration, David Spratt. He has recently published a report titled: Warming has reached 1.5°C. What… Read More »“At the point of systemic collapse – what is the least worst outcome?” David Spratt
When introducing climate engineering, I often begin with something deceptively simple: the napkin diagram. The story is regarding an esteemed colleague John Sheppard, who sketched the original while talking through climate pathways over a meal.… Read More »The Napkin Diagram: Understanding Climate Overshoot and Why SRM May Be Needed
The climate conversation is shifting. Recent media coverage has been noticeably more open to serious research into climate repair and while this isn’t about the Centre for Climate Repair (CCR) per se, it reflects a… Read More »A Decisive Decade: Cambridge’s Three-R Strategy for Climate Repair
Geoengineering, also known as ‘climate intervention’ is being debated by the UK government on 23rd June 2025. This is a response to a petition signed by ~160k people calling for a ban on geoengineering in… Read More »Special Episode – Should the UK ban geoengineering? UK debates outlawing climate interventions
A decade ago, I helped convene SRM Science 2015 in Cambridge to focus squarely on the science and engineering of solar radiation management. We brought ethics and governance into the room too, but the goal… Read More »“We Can’t Be Sidelined Forever”: Why Stratospheric Aerosol Injection Must Move From Taboo to Testing
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In this ClinateGenn episode I am speaking with Dr Mike MacCracken, a pioneering climate scientist whose research on atmospheric physics and global climate change has significantly advanced our understanding of human impacts on the climate… Read More »2.5ºC–3ºC Is Not Viable: Dr. Mike MacCracken’s Case for Solar Radiation Management
In this ClimateGenn episode I am speaking with Professor Raymond Pierrehumbert, who is the Halley Professor of Physics at the University of Oxford about solar geoengineering. He and Professor Michael E. Mann from Pennsylvania University coauthored… Read More »The Damocles World: Professor Raymond Pierrehumbert on the Dangers of Solar Geoengineering
“As they’re released in the soil, they capture carbon.. which eventually makes its way into rivers and the oceans where it’s stored for thousands of years.”
In this Climategenn episode we hear two committed voices non different sides of the climate engineering debate, make their cases as to why we should or should not research geoengineering with the intention of deployment… Read More »Should we engineer the climate? Nick Breeze interviews Dr Heidi Sevestre and Herb Simmens
It is important to note from the outset that reducing emissions is, without question, critical. But it is equally vital to understand that it won’t be enough on its own. The simple truth is that… Read More »Greenhouse Gas Removal: a critical component to cool the Earth system
The conversation surrounding geoengineering has grown in urgency as scientists continue to forecast that global temperatures are on track to exceed 2°C, with many efforts falling short of holding temperatures below the 1.5°C target. As… Read More »Geoengineering and the Urgency for Climate Repair
Carbon emission reductions are not happening fast enough and, even if they were, Professor Hugh Hunt argues they are now not enough to prevent dangerous climate impacts. Here he gives his reasons why future COP’s… Read More »COP29 must acknowledge geoengineering as necessary to fight extreme climate impacts
In this sequel to Professor Hunt’s previous article on preserving Arctic sea ice, he addresses the need for a large-scale research initiative to investigate marine cloud brightening (MBC). The Arctic is often referred to as… Read More »The Imperative for Marine Cloud Brightening: A Call for $100 Million to Preserve Arctic Sea Ice
Preserving the Arctic sea-ice is now an imperative that must be taken seriously by both the political and scientific research community. Professor Hugh Hunt presents a pathway forward for consideration. As the impacts of climate… Read More »Geoengineering is necessary to refreeze the Arctic & stabilize the Northern Hemisphere’s weather system
