Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-19 Thread Keith Henson
On Wed, Feb 19, 2014 at 12:37 AM, Schuiling, R.D. (Olaf) r.d.schuil...@uu.nl wrote: Therefore I say: Do as nature has always done it, by weathering basic silicates. Only because we are messing up the CO2 system, the weathering must move up to enhanced weathering, Olaf schuiling Ah, given the

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-19 Thread Greg Rau
True, employing weathering to consume all of our CO2 is a daunting task, yet that's exactly what will happen over the next 100 kyrs if we do nothing: http://www.annualreviews.org/doi/abs/10.1146/annurev.earth.031208.100206 So the (engineering) task is to see when, where, and how we can

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-18 Thread Oliver Morton
Dear Ron Very large (eg 2TW - 20TW) wind installation will have effects on the climate system by changing wind patterns, though the scale is not yet I think well agreed; similarly large biomass plantations have albedo and evapotranspiration effects. They could thus be seen as fitting the Royal

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-18 Thread Greg Rau
I think that we can all agree that we have a global problem (excess air CO2, OK, and other GHGs) that will require effective actions whose sum effect will counter or remove the problem at a global scale.  Because all actions have risks, costs, negative impacts as well as benefits, we need to

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-18 Thread Ronal W. Larson
On Feb 18, 2014, at 2:29 AM, Oliver Morton olivermor...@economist.com wrote: Dear Ron Very large (eg 2TW - 20TW) wind installation will have effects on the climate system by changing wind patterns, though the scale is not yet I think well agreed; similarly large biomass plantations have

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-18 Thread Keith Henson
On Tue, Feb 18, 2014 at 11:09 AM, Greg Rau gh...@sbcglobal.net wrote: snip Regardless, we need further research to better understand if we have any globally effective options whose (cost +impact+ risk)/benefit passes whatever $, environmental, and ethics smell tests the world community

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-17 Thread Ronal W. Larson
Eugene cc list Since I can't imagine that you can believe you can convince me on any of your topics below, I presume that you meant this to go to the full list. Ron On Feb 17, 2014, at 8:09 AM, euggor...@comcast.net wrote: What is the proof that carbon reduction plays any

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-17 Thread Ronal W. Larson
Ken with ccs. 1. I think you are being too hard below on the Royal Society Report. That report clearly states that it is made up of two approaches, whose names are not being criticized (CDR and SRM, in that order on page xi). It is not obvious why a name that combines two names

Re: [geo] Re: What Is Climate Geoengineering? Word Games in the Ongoing Debates Over a Definition

2014-02-17 Thread Ronal W. Larson
Oliver and ccs. I mostly agree with all you say below, including your final Is that not.. question below. But I ask that you say more about two items: 1. How can your very large scale deployment of wind energy (highlighted below) fit into the Royal Society's two part (SRM and