18 Con\ufb02ict with treaEes 19 Unknown unknowns Robock 2008 What would you propose

18 conflict with treaees 19 unknown unknowns robock

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18. Conflict with treaEes 19. “Unknown unknowns” Robock 2008 What would you propose as a method? 1. Model all results first? 2. Small scale tests? For direct effect method how do you do this? 3. Are there effects that can’t be accepted? Risk vs. Reward
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As with the example of cheaper natural gas, the “stop gap” makes a possible “long term soluEon” much less likely
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Summer sea ice goes away with a doubling of CO 2 Ice returns with geoengineering (but not homogeneously) It is possible to overdo the effect Rasch et al., 2009
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Model #2 (NASA GISS) Model #1 (Hadley) Jones et al., 2010 PrecipitaEon change from stratospheric sulfate
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PrecipitaEon change from marine cloud seeding Jones et al., 2009 mm/day
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The Ozone Effect
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The Ozone Effect
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Baseline With Geoengineering Rasch et al., 2008 Ethics in research : when do you decide to stop researching a topic because the result is too negaEve? When does “we should know more about it in case we try it” conflict with “this is not a good idea”?
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Signed and ratified Acceded or succeeded Only signed “ConvenEon on the ProhibiEon of Military or Any Other HosEle Use of Environmental ModificaEon Techniques” (ENMOD) prohibits the use of the environment as a weapon. A result of opposiEon to Agent Orange and weather modificaEon during Vietnam Adopted by the UN General Assembly on 10 December 1976 and opened for signature on 18 May 1977, ENMOD entered into force when Laos, the twenEeth State Party, deposited its instrument of raEficaEon on 5 October 1978. Map : wikipedia
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For you to consider 1. Have we shown that the “cure” is be"er than the “disease”? 2. Is this really the same as what we’ve already done (“inadvertent” climate modificaEon)? 3. If this is a “last resort” are we certain it is going to work? h"p://
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