A climate economist discusses why efforts to cool earth’s climate through solar geoengineering appear all but inevitable, and considers the policy questions and political battles to come.
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There is no overarching, national debate into the merits of solar geoengineering, which is process to artificially cool the Earth by reflecting sunlight back into space. The technology sounds fanciful, the stuff of science fiction. Yet earlier this year the National Academies of Sciences issued an urgent request to Washington to begin a federal research program into geoengineering. That request has, so far, largely fallen on deaf ears.

Climate economist Gernot Wagner believes solar geoengineering is inevitable despite the relative lack of attention the technology has attracted to date. In a recently published book he makes the case for this inevitability, and also presents a compelling argument for why much more research into geoengineering’s risks must be completed if is to be put into practice. In the podcast, he explores why solar geoengineering is fundamentally different from other strategies that address climate change, and why research programs into the technology must be tightly governed. He also discusses concern that solar geoengineering’s implementation, if inevitable, is likely to stoke fierce policy debate and, quite possibly, geopolitical tensions.

Gernot Wagner is a climate economist at New York University and author of the recently published book Geoengineering: the Gamble. He is also co-author of Climate Shock, which was chosen by the Financial Times as a best book in economics in 2015.

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A climate economist discusses why efforts to cool earth’s climate through solar geoengineering appear all but inevitable, and considers the policy questions and political battles to come. --- There is no overarching, national debate into the merits of solar geoengineering, which is process to artificially cool the Earth by reflecting sunlight back into space. The technology sounds fanciful, the stuff of science fiction. Yet earlier this year the National Academies of Sciences issued an urgent request to Washington to begin a federal research program into geoengineering. That request has, so far, largely fallen on deaf ears. Climate economist Gernot Wagner believes solar geoengineering is inevitable despite the relative lack of attention the technology has attracted to date. In a recently published book he makes the case for this inevitability, and also presents a compelling argument for why much more research into geoengineering’s risks must be completed if is to be put into practice. In the podcast, he explores why solar geoengineering is fundamentally different from other strategies that address climate change, and why research programs into the technology must be tightly governed. He also discusses concern that solar geoengineering’s implementation, if inevitable, is likely to stoke fierce policy debate and, quite possibly, geopolitical tensions. Gernot Wagner is a climate economist at New York University and author of the recently published book Geoengineering: the Gamble. He is also co-author of Climate Shock, which was chosen by the Financial Times as a best book in economics in 2015. Related Content  Can We Measure Successful Climate Adaptation? https://kleinmanenergy.upenn.edu/news-insights/can-we-measure-successful-climate-adaptation/  Guidelines for Successful, Sustainable, Nature-Based Solutions https://kleinmanenergy.upenn.edu/research/publications/guidelines-for-successful-sustainable-nature-based-solutions/  Harvesting the Sun: On-Farm Opportunities and Challenges for Solar Development https://kleinmanenergy.upenn.edu/research/publications/harvesting-the-sun-on-farm-opportunities-and-challenges-for-solar-development/

Energy Policy Now offers clear talk on the policy issues that define our relationship to energy and its impact on society and the environment. The series is produced by the Kleinman Center for Energy Policy at the University of Pennsylvania and hosted by energy journalist Andy Stone. Join Andy in conversation with leaders from industry, government, and academia as they shed light on today's pressing energy policy debates.

Energy Policy Now

Energy Policy Now offers clear talk on the policy issues that define our relationship to energy and its impact on society and the environment. The series is produced by <a href="https://kleinmanenergy.upenn.edu/podcast/">the Kleinman Center for Energy Policy</a> at the University of Pennsylvania and hosted by energy journalist Andy Stone. Join Andy in conversation with leaders from industry, government, and academia as they shed light on today's pressing energy policy debates.

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