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Scientists Suggest Testing Climate Engineering
Last edited Tue Feb 10, 2015, 06:34 PM - Edit history (1)
http://www.technologyreview.com/news/535026/scientists-suggest-testing-climate-engineering/[font face=Serif][font size=5]Scientists Suggest Testing Climate Engineering[/font]
[font size=4]A report from the National Academy of Sciences says inaction on greenhouse-gas emissions makes resorting to geoengineering more likely.[/font]
By Kevin Bullis on February 10, 2015
[font size=3]A study by the National Academy of Sciences calls for experiments that would test technologies designed to counteract the global warming caused by greenhouse-gas emissions—a remarkable development for a field that even a decade ago was on the extreme fringes of science.
The study, sponsored by the U.S. National Research Council, the Central Intelligence Agency, NASA, and the Department of Energy, notes that geoengineering would only partially offset changes caused by greenhouse gases, and that it could introduce new problems of its own.
However, it is the first time a major report sponsored by the U.S. government has called for geoengineering experiments. Many have worried that even talking about geoengineering, let alone conducting experiments, distracts attention from efforts to reduce carbon dioxide emissions.
The report “says we won’t know if it’s a good solution until we’ve done more research,” says Lynn Russell, a professor of atmospheric chemistry at the University of California at San Diego and a member of the study committee. “Previous reports have not been willing to say that.”
…[/font][/font]
[font size=4]A report from the National Academy of Sciences says inaction on greenhouse-gas emissions makes resorting to geoengineering more likely.[/font]
By Kevin Bullis on February 10, 2015
[font size=3]A study by the National Academy of Sciences calls for experiments that would test technologies designed to counteract the global warming caused by greenhouse-gas emissions—a remarkable development for a field that even a decade ago was on the extreme fringes of science.
The study, sponsored by the U.S. National Research Council, the Central Intelligence Agency, NASA, and the Department of Energy, notes that geoengineering would only partially offset changes caused by greenhouse gases, and that it could introduce new problems of its own.
However, it is the first time a major report sponsored by the U.S. government has called for geoengineering experiments. Many have worried that even talking about geoengineering, let alone conducting experiments, distracts attention from efforts to reduce carbon dioxide emissions.
The report “says we won’t know if it’s a good solution until we’ve done more research,” says Lynn Russell, a professor of atmospheric chemistry at the University of California at San Diego and a member of the study committee. “Previous reports have not been willing to say that.”
…[/font][/font]
http://www.nap.edu/catalog/18805/climate-intervention-carbon-dioxide-removal-and-reliable-sequestration
[font face=Serif][font size=5]Climate Intervention:
Carbon Dioxide Removal and Reliable Sequestration (2015)[/font]
[font size=3]Authors
Committee on Geoengineering Climate: Technical Evaluation and Discussion of Impacts; Board on Atmospheric Sciences and Climate; Ocean Studies Board; Division on Earth and Life Studies; National Research Council
Description
The signals are everywhere that our planet is experiencing significant climate change. It is clear that we need to reduce the emissions of carbon dioxide and other greenhouse gases from our atmosphere if we want to avoid greatly increased risk of damage from climate change. Aggressively pursuing a program of emissions abatement or mitigation will show results over a timescale of many decades. How do we actively remove carbon dioxide from the atmosphere to make a bigger difference more quickly?
As one of a two-book report, this volume of Climate Intervention discusses CDR, the carbon dioxide removal of greenhouse gas emissions from the atmosphere and sequestration of it in perpetuity. Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration introduces possible CDR approaches and then discusses them in depth. Land management practices, such as low-till agriculture, reforestation and afforestation, ocean iron fertilization, and land-and-ocean-based accelerated weathering, could amplify the rates of processes that are already occurring as part of the natural carbon cycle. Other CDR approaches, such as bioenergy with carbon capture and sequestration, direct air capture and sequestration, and traditional carbon capture and sequestration, seek to capture CO2 from the atmosphere and dispose of it by pumping it underground at high pressure. This book looks at the pros and cons of these options and estimates possible rates of removal and total amounts that might be removed via these methods.
With whatever portfolio of technologies the transition is achieved, eliminating the carbon dioxide emissions from the global energy and transportation systems will pose an enormous technical, economic, and social challenge that will likely take decades of concerted effort to achieve. Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration will help to better understand the potential cost and performance of CDR strategies to inform debate and decision making as we work to stabilize and reduce atmospheric concentrations of carbon dioxide.
…[/font][/font]
(The book is available as a free PDF.)Carbon Dioxide Removal and Reliable Sequestration (2015)[/font]
[font size=3]Authors
Committee on Geoengineering Climate: Technical Evaluation and Discussion of Impacts; Board on Atmospheric Sciences and Climate; Ocean Studies Board; Division on Earth and Life Studies; National Research Council
Description
The signals are everywhere that our planet is experiencing significant climate change. It is clear that we need to reduce the emissions of carbon dioxide and other greenhouse gases from our atmosphere if we want to avoid greatly increased risk of damage from climate change. Aggressively pursuing a program of emissions abatement or mitigation will show results over a timescale of many decades. How do we actively remove carbon dioxide from the atmosphere to make a bigger difference more quickly?
As one of a two-book report, this volume of Climate Intervention discusses CDR, the carbon dioxide removal of greenhouse gas emissions from the atmosphere and sequestration of it in perpetuity. Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration introduces possible CDR approaches and then discusses them in depth. Land management practices, such as low-till agriculture, reforestation and afforestation, ocean iron fertilization, and land-and-ocean-based accelerated weathering, could amplify the rates of processes that are already occurring as part of the natural carbon cycle. Other CDR approaches, such as bioenergy with carbon capture and sequestration, direct air capture and sequestration, and traditional carbon capture and sequestration, seek to capture CO2 from the atmosphere and dispose of it by pumping it underground at high pressure. This book looks at the pros and cons of these options and estimates possible rates of removal and total amounts that might be removed via these methods.
With whatever portfolio of technologies the transition is achieved, eliminating the carbon dioxide emissions from the global energy and transportation systems will pose an enormous technical, economic, and social challenge that will likely take decades of concerted effort to achieve. Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration will help to better understand the potential cost and performance of CDR strategies to inform debate and decision making as we work to stabilize and reduce atmospheric concentrations of carbon dioxide.
…[/font][/font]
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