[geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-19 Thread Ken Caldeira
Folks, This Sunday evening, I am supposed to help kick off a discussion about what we know and what we don't know about solar geoengineering. https://www.grc.org/programs.aspx?id=17348 It would be helpful if some people on this group could attempt to answer these questions: *1. What are the mos

Re: [geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-19 Thread Klaus Lackner
* What are the unintended side effects for different methods under consideration * Benefit – risk analysis over time From: on behalf of Ken Caldeira Reply-To: "kcalde...@gmail.com" Date: Wednesday, July 19, 2017 at 07:48 To: Geoengineering Subject: [geo] Help: What do we kno

Re: [geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-19 Thread Olivier Boucher
Hello Ken, my two pence, not repeating Klaus' input. /1. What are the most important things we know about solar geoengineering?/ some techniques can cool the planet, rapidly and in a reversible way (although the impacts may not all be reversible) there are side effects, eg on precipitation pat

Re: [geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-19 Thread Andrew Revkin
Only thing I'd add to Klaus's nice summary is this: We don't know of a model for decision-making on a global intervention on any other issue yet that can apply neatly to this kind of action. - CFC/ozone diplomacy was about mitigating something, not adding something. - Nuclear test ban same. So

Re: [geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-19 Thread Eric Durbrow
methods under consideration - Benefit – risk analysis over time *From: * on behalf of Ken Caldeira < kcalde...@carnegiescience.edu> *Reply-To: *"kcalde...@gmail.com" *Date: *Wednesday, July 19, 2017 at 07:48 *To: *Geoengineering *Subject: *[geo] Help: What do we know and wh

RE: [geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-19 Thread Douglas MacMartin
e.edu> > Reply-To: "kcalde...@gmail.com <mailto:kcalde...@gmail.com> " mailto:kcalde...@gmail.com> > Date: Wednesday, July 19, 2017 at 07:48 To: Geoengineering mailto:Geoengineering@googlegroups.com> > Subject: [geo] Help: What do we know and what don't we know about

RE: [geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-19 Thread Andrew Lockley
analogs, is the possibility of these really significant in > comparison with the known knowns and known unknowns of never considering > geoengineering? > > > > See you in a few days, > > > > doug > > > > *From:* geoengineering@googlegroups.com [mailto:geoengineering

RE: [geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-19 Thread Erik Thorstensen
: kcalde...@gmail.com; Geoengineering Subject: Re: [geo] Help: What do we know and what don't we know about solar geoengineering? What are the most important things we know about solar geo-engineering? * It can be done, it is comparatively cheap, but probably not as cheap as people

Re: [geo] Help: What do we know and what don't we know about solar geoengineering?

2017-07-20 Thread Janos Pasztor
y-To: "kcalde...@gmail.com<mailto:kcalde...@gmail.com>" mailto:kcalde...@gmail.com>> Date: Wednesday, July 19, 2017 at 07:48 To: Geoengineering mailto:Geoengineering@googlegroups.com>> Subject: [geo] Help: What do we know and what don't we know about solar geoengine