Geoengineering

Should There Be a ‘Non-Use’ Agreement on Solar Geoengineering?

Volcanic eruption (Sarychev Peak)

Why I signed the call for a non-use agreement, and what that might mean for research.

Although I’m a newbie at the Emmett Institute, I have been working on geoengineering for a decade now. I have heard countless arguments over whether and how solar geoengineering could be useful in the struggle to manage climate change. I have seen deeply misleading claims by both its supporters and detractors, many trying to coopt …

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This Climate Debate is a lot of Hot Air

Geoengineering is having a moment. But much of the media coverage is failing to capture the actual debate.

We’ve been hearing a lot lately about geoengineering – the various scientific theories and governance ideas that could eventually lead to technological interventions to help cool the planet. A weather balloon stunt in Mexico by a small startup called Make Sunsets generated a lot of hot headlines, even though that solar geoengineering “experiment” was so …

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Tightening the Net

Rainbow fishing nets in Malta

Tackling climate procrastination by closing the loopholes in ‘net-zero’ climate goals

The global stampede to adopt net-zero climate goals continues unabated. As a goal net-zero is achieved when any residual carbon emissions are counter-balanced fully by dedicated carbon removal. Delivered at a global level, this would stabilise global temperatures. Almost 70% of states (accounting for 90% of the world’s economic activity) have adopted net-zero goals, as …

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A Dangerous Disruption

A startup firm proposes to sell dubious carbon credits from stratospheric aerosol injection

Last week, MIT’s “Technology Review” reported that a small startup firm is proposing to spray reflective aerosols in the stratosphere commercially as a climate corrective. (Stratospheric Aerosol Injection or SAI.) Previously announced online in the Google Geoengineering Group, the firm is small and new, operating with a claimed total of $750K of venture financing. They …

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Arguments over Solar Geoengineering Research

Science Magazine weighs in

Doing research on environmental issues or responses is usually an easy call for policy-makers and gets wide political support, even if there’s disagreement what to do about the issue. But there is now one big exception: research on solar geoengineering (SG).  SG would cool the Earth, temporarily and imperfectly offsetting some of the climate effects …

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What if someone just does it?

A scenario exercise on unauthorized use of solar geoengineering

Note: This post is co-authored with Jesse L. Reynolds, who recently completed an Emmett Institute Geoengineering Governance Fellowship As the climate crisis grows more urgent, unconventional technological responses are getting increased attention and controversy. We’ve written previously on Legal Planet about these technologies and their promise and risks. The most high-stakes and controversial of these …

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Earth System Interventions for Sustainability

Brand in 2020, via Cmichel67 at Wikimedia.

We actively shape major Earth systems, with increasingly powerful technologies. We should face up to it.

Stewart Brand–a contender for the most interesting living person in the world–famously opened the Whole Earth Catalogue in 1969, “We are as gods and might as well get good at it.” Importantly (and often misunderstood), he meant not that we are gods, but instead that technologies have given humanity powers that had previously been exclusive …

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The US National Academies on Solar Geoengineering Research and Governance

Reflecting Sunlight: Recommendations for Solar Geoengineering Research and Research Governance (2021) cover

Four Emmett Institute scholars react to an important new report

A few of us are part of the Emmett Institute’s Geoengineering Governance Project, where we study the legal and policy issues presented by solar geoengineering and carbon dioxide removal technologies. On the former set of technologies—that is, reflecting a little incoming sunlight to cool the Earth and temporarily counteract heating from greenhouse gases—the US National …

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Solar Geoengineering and Public Engagement Trolling

Illustration of the SCoPEx balloon and gondola

A first test of a long-planned outdoor solar geoengineering experiment has been delayed–again. Why?

It has been a busy week in solar geoengineering. Last week, the US National Academies released a report that offers recommendations for a research program and for governance of research. (A few of us will post our thoughts on the report here soon.) Here I discuss developments regarding outdoor solar geoengineering experiments, of which there have …

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The Kolbert Report

Elizabeth Kolbert’s new book asks what it means to protect nature in the Anthropocene.

Elizabeth Kolbert’s new book, Under a White Sky, opens with the story of the battle to keep invasive Asian carp out of the Great Lakes.  The problem exists because of two earlier interventions with nature.  A century ago, we reversed the flow of the Chicago river to keep the city’s pollutants out of Lake Michigan …

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