Geoengineering

UCLA Law Faculty Weigh In on Solar Geoengineering Experiment at Harvard

How to engage the public when everyone on Earth is a stakeholder?

  It’s been a surprisingly busy year for solar geoengineering research. In late December, Congress appropriated $4 million to NOAA to study the influence of atmospheric aerosols on climate, with an eye on assessing “solar climate interventions.” In March, Australian scientists ran a trial of a cloud-seeding technology on the Great Barrier Reef that may …

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A New Report on Governing Climate Geoengineering

I suggest steps toward global governance of carbon dioxide removal and solar geoengineering

A new report on the governance of climate geoengineering — that is, carbon dioxide removal (CDR) and solar geoengineering (or solar radiation modification, SRM) — has been released. International Governance Issues on Climate Engineering: Information for Policymakers was coordinated and issued by the International Risk Governance Center, edited by IRGC’s Marie-Valentine Florin, and commissioned by the …

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Nonstate Actors Could Help Govern Solar Geoengineering

Governments are not acting; maybe others could — and should

Although reductions in greenhouse gas emissions continue to be inadequate to prevent dangerous climate change, solar geoengineering appears able to substantially reduce climate risks. More research, including outdoor experiments, is needed to reduce critical uncertainties. This could pose some environmental risks and — arguably more importantly — will raise diverse social concerns, such as research …

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A Solar Geoengineering Milestone Goes Largely Unnoticed

Testing marine cloud brightening equipment. Credit: Brendan Kelaher/Southern Cross University

The first explicit, meaningful outdoor test garnered little attention in the news or from environmentalists

In response to insufficient cuts in greenhouse gas emission, some scientists and others are researching solar geoengineering. These techniques would reflect a small portion of incoming sunlight to cool the planet and counter climate change. A major step in solar geoengineering was recently taken, although you probably wouldn’t know it from reading the news or …

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Negative Emissions: The Next Bright Shiny Object in Greenhouse-Gas Emissions Reductions

In ongoing debate over how to slow and stop climate change, the past year or so has seen a large shift of attention and interest toward technological options to remove CO2 from the atmosphere after it is emitted – options generally lumped under the headings “Carbon dioxide removal” (CDR) or “negative emissions technologies” (NETs). These …

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How the Coronavirus is (Not) Like Climate Change

The two have some informative parallels, although some observers draw the wrong conclusions

The coronavirus dominates the news and much of our minds. Here at Legal Planet, we have written about the coronavirus and presidential powers, disaster declarations, fossil fuel production, decision-making under uncertainty, inequality, and cities. I will join the party and consider what are the parallels and differences between the coronavirus crisis and anthropogenic climate change, …

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Europe Mulls its First Climate Law

European Union flag

What would it do in terms of emissions targets and likely actual mitigation?

The European Union is, if one treats it as a country, the world’s third greatest emitter of greenhouse gases (GHGs). It has also been a leader in emissions reduction (“mitigation”), and its per capita emissions are merely 43% of the US’s. The EU government is presently considering a major new climate law that will set …

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Maxing Out NEPA: Environmental Review of Early Solar Geoengineering Field Research

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Done right, environmental review can reach what worries people most about climate engineering

A few months ago, Congress earmarked $4 million for the National Oceanic and Atmospheric Administration (NOAA) to research: stratospheric conditions and the Earth’s radiation budget, including the impact of the introduction of material into the stratosphere from changes in natural systems, increased air and space traffic, proposals to inject material to affect climate, and the …

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Antacids for the Sea: Artificial Ocean Alkalinization

A potential tool for adaptation and carbon removal, but more research is needed.

The carbonate cycle helps make the oceans one of the largest carbon sinks on the planet. As the oceans’ surface waters mingle with the open air, they absorb enormous amounts of carbon dioxide (CO2), storing it in the water as carbonic acid and carbonates and as limestone on the seafloor. The carbonate cycle is a …

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We Can’t Count on Cutting Greenhouse Gas Emissions to Prevent Dangerous Climate Change

Last week’s climate summit yielded little in the way of action. Photo via UNFCCC.

Although reducing emissions remains essential, it is time to focus on additional responses

Last month, representatives of all countries gathered for their annual meeting to prevent climate change. Despite the motto “Time for Action,” the New York Times described it as “one of the worst outcomes in a quarter-century of climate negotiations.” Should we be surprised? Disappointed? Despairing? I believe that insufficient cuts in greenhouse gas emissions — …

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