Regional climate responses to geoengineering with tropical and Arctic
[1] Anthropogenic stratospheric aerosol production, so as to reduce solar insolation and cool Earth, has been suggested as an emergency response to geoengineer the planet in response to global warming. While volcanic eruptions have been suggested as innocuous examples of stratospheric aerosols cooli...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.364.2254 2023-05-15T14:48:26+02:00 Regional climate responses to geoengineering with tropical and Arctic So Injections Alan Robock Luke Oman Georgiy L. Stenchikov The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.364.2254 http://climate.envsci.rutgers.edu/pdf/2008JD010050small.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.364.2254 http://climate.envsci.rutgers.edu/pdf/2008JD010050small.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://climate.envsci.rutgers.edu/pdf/2008JD010050small.pdf 2] The United Nations Framework Convention on Climate Change (UNFCCC) was established in 1992. Signe including the text ftciteseerx 2016-01-08T00:58:10Z [1] Anthropogenic stratospheric aerosol production, so as to reduce solar insolation and cool Earth, has been suggested as an emergency response to geoengineer the planet in response to global warming. While volcanic eruptions have been suggested as innocuous examples of stratospheric aerosols cooling the planet, the volcano analog actually argues against geoengineering because of ozone depletion and regional hydrologic and temperature responses. To further investigate the climate response, here we simulate the climate response to both tropical and Arctic stratospheric injection of sulfate aerosol precursors using a comprehensive atmosphere-ocean general circulation model, the National Aeronautics and Space Administration Goddard Institute for Space Studies ModelE. We inject SO2 and the model converts it to sulfate aerosols, transports the aerosols and removes them through dry and wet deposition, and calculates the climate response to the radiative forcing from the aerosols. We conduct simulations of future climate with the Intergovernmental Panel on Climate Change A1B business-as-usual scenario both with and without geoengineering and compare the results. We find that if there were a way to continuously inject SO2 into the lower stratosphere, it would produce global cooling. Tropical SO 2 injection would produce sustained cooling over most of the world, with more cooling over continents. Arctic SO2 injection would not just cool the Arctic. Both tropical and Arctic SO 2 injection would disrupt the Asian and African summer monsoons, reducing precipitation to the food supply for billions of people. These regional climate anomalies are but one of many reasons that argue against the implementation of this kind of geoengineering. Text Arctic Climate change Global warming Unknown Arctic |
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2] The United Nations Framework Convention on Climate Change (UNFCCC) was established in 1992. Signe including the |
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2] The United Nations Framework Convention on Climate Change (UNFCCC) was established in 1992. Signe including the So Injections Alan Robock Luke Oman Georgiy L. Stenchikov Regional climate responses to geoengineering with tropical and Arctic |
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2] The United Nations Framework Convention on Climate Change (UNFCCC) was established in 1992. Signe including the |
description |
[1] Anthropogenic stratospheric aerosol production, so as to reduce solar insolation and cool Earth, has been suggested as an emergency response to geoengineer the planet in response to global warming. While volcanic eruptions have been suggested as innocuous examples of stratospheric aerosols cooling the planet, the volcano analog actually argues against geoengineering because of ozone depletion and regional hydrologic and temperature responses. To further investigate the climate response, here we simulate the climate response to both tropical and Arctic stratospheric injection of sulfate aerosol precursors using a comprehensive atmosphere-ocean general circulation model, the National Aeronautics and Space Administration Goddard Institute for Space Studies ModelE. We inject SO2 and the model converts it to sulfate aerosols, transports the aerosols and removes them through dry and wet deposition, and calculates the climate response to the radiative forcing from the aerosols. We conduct simulations of future climate with the Intergovernmental Panel on Climate Change A1B business-as-usual scenario both with and without geoengineering and compare the results. We find that if there were a way to continuously inject SO2 into the lower stratosphere, it would produce global cooling. Tropical SO 2 injection would produce sustained cooling over most of the world, with more cooling over continents. Arctic SO2 injection would not just cool the Arctic. Both tropical and Arctic SO 2 injection would disrupt the Asian and African summer monsoons, reducing precipitation to the food supply for billions of people. These regional climate anomalies are but one of many reasons that argue against the implementation of this kind of geoengineering. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
So Injections Alan Robock Luke Oman Georgiy L. Stenchikov |
author_facet |
So Injections Alan Robock Luke Oman Georgiy L. Stenchikov |
author_sort |
So Injections |
title |
Regional climate responses to geoengineering with tropical and Arctic |
title_short |
Regional climate responses to geoengineering with tropical and Arctic |
title_full |
Regional climate responses to geoengineering with tropical and Arctic |
title_fullStr |
Regional climate responses to geoengineering with tropical and Arctic |
title_full_unstemmed |
Regional climate responses to geoengineering with tropical and Arctic |
title_sort |
regional climate responses to geoengineering with tropical and arctic |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.364.2254 http://climate.envsci.rutgers.edu/pdf/2008JD010050small.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming |
genre_facet |
Arctic Climate change Global warming |
op_source |
http://climate.envsci.rutgers.edu/pdf/2008JD010050small.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.364.2254 http://climate.envsci.rutgers.edu/pdf/2008JD010050small.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766319498578624512 |