Geoengineering
Europe Mulls its First Climate Law
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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CONTINUE READINGMaxing Out NEPA: Environmental Review of Early Solar Geoengineering Field Research
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 …
CONTINUE READINGAntacids 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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CONTINUE READINGWe Can’t Count on Cutting Greenhouse Gas Emissions to Prevent Dangerous Climate Change
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 — …
CONTINUE READINGClimate Change, Ozone Depletion, and the New York Times
The Montreal Protocol offers lessons for climate change, but not a role model
In an extended piece yesterday, The New York Times editorial board wrote that “The World Solved the Ozone Problem. It Can Solve Climate Change. The same tools that fixed the ozone hole — science, innovation and international action — can address.” Although the editorial was mostly correct, it missed what I believe to be the …
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CONTINUE READINGGlacial Geoengineering and the Law of Antarctica
Could mega-adaptation projects in Antarctica slow the rise of global sea levels?
As the planet warms over the coming centuries, glacial melt in Greenland and Antarctica will lead to significant sea level rise. This phenomenon threatens to flood coastal cities, submerge island nations, and displace hundreds of millions of people. Coastal adaptation projects underway give us a glimpse into how we will respond to this future. Some …
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CONTINUE READINGSixth International Geoengineering Governance Summer School, 2019
A brief report from a recent Emmett-convened event
As the severity of climate change risks and the inability of current efforts to adequately limit risks become clear, geoengineering technologies – active large-scale environmental interventions to reduce disruptions caused by elevated greenhouse gases – are increasingly receiving attention and generating controversy. These proposals would either remove and sequester atmospheric carbon dioxide or modify the …
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CONTINUE READINGUncovering the Origins of False Claims in the Solar Geoengineering Discourse
The story behind a recent news article reveals how activist groups—with the media’s help—cause misleading and false assertions to arise, persist, and spread.
Originally posted at Harvard’s Solar Geoengineering Research Program. Much of my work concerns solar geoengineering, a set of proposals to block or reflect a small portion of incoming sunlight in order to reduce global warming. Unfortunately, the discourse is rife with specious, misrepresented, and outright false statements – many of which are consistent with intuition – …
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CONTINUE READINGThe Governance of Solar Geoengineering: Managing Climate Change in the Anthropocene
My book is now available!
I interrupt my ongoing blog series on new biotechnologies and their governance (1, 2, 3) to announce that my book The Governance of Solar Geoengineering Managing: Climate Change in the Anthropocene is available today from Cambridge University Press. The brief description is: Climate change is among the world’s most important problems, and solutions based on …
CONTINUE READINGGoverning Geoengineering at the United Nations? No, at Least Not Now
A proposed resolution falters at the UN Environment Assembly
At this week’s UN Environment Assembly, countries’ representatives debated a draft resolution regarding climate geoengineering. Unable to come to agreement, it was withdrawn Wednesday. This is not surprising to me, as — for the most part — leaders presently lack political incentives to take action. I am also not particularly disappointed, because a counter-productive resolution seemed fairly …
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