Re: [geo] Re: On when it might make sense for intervention to begin

2017-11-08 Thread Michael Hayes
Mike & List, Going with the most well known is understandable. Yet SAI is actually, from a Polar perspective, not any more well known than Hydroxyl Cryogenesis Geotherapy or Global Electrical Circuit Enhancement. Polar modeling is a separate art. Michael Hayes On Nov 7, 2017 6:01 PM,

Re: [geo] Re: First simulations of designing stratospheric sulfate aerosol geoengineering to meet multiple simultaneous climate objectives - Kravitz - 2017 - Journal of Geophysical Research: Atmospher

2017-11-08 Thread Michael Hayes
Ben, Judging from the topical description of this University Center for Atmospheric Research recent work, in this model we do not find weight given to Sulfur's role in Polar Stratospheric Cloud creation and the resulting heat feedback.

Re: [geo] Re: First simulations of designing stratospheric sulfate aerosol geoengineering to meet multiple simultaneous climate objectives - Kravitz - 2017 - Journal of Geophysical Research: Atmospher

2017-11-08 Thread Ben Kravitz
Hi Michael - We do have a thorough treatment of polar stratospheric clouds in our simulations. We haven't looked into the details that you're talking about, but in principle, someone could. I know basically nothing about wetted carbon. We used stratospheric sulfate aerosols in our

[geo] Fwd: Workshop/Webinar on Geologic Sequestration

2017-11-08 Thread Greg Rau
> FYI... > > View this email in your browser > > > > YOU ARE INVITED > > Carbon Dioxide Removal and Reliable Sequestration Workshop Series: > Geologic Sequestration > Webinar - Nov. 15 and Workshop - Nov. 28 > > The public is invited to attend a webinar and workshop hosted by the National

Re: [geo] Re: First simulations of designing stratospheric sulfate aerosol geoengineering to meet multiple simultaneous climate objectives - Kravitz - 2017 - Journal of Geophysical Research: Atmospher

2017-11-08 Thread Michael Hayes
Simon and List, Thank for your assurance. I will learn what I can from the details and thank you for making them available. In my past readings on this concern, only GCMs have been used to work this issue. I will calm my concerns over sufur warming the poles based upon your claims. Yet seeing an

[geo] New research on soil carbon sinks

2017-11-08 Thread Eric Durbrow
Summary is here (and includes links to abstracts): https://www.sciencedaily.com/releases/2017/11/171108092406.htm The gist: We probably have underestimated how much carbon can be stored in agricultural soil minerals (found in the first 3 feet or so) and changes in agricultural practices can

Re: [geo] Re: First simulations of designing stratospheric sulfate aerosol geoengineering to meet multiple simultaneous climate objectives - Kravitz - 2017 - Journal of Geophysical Research: Atmospher

2017-11-08 Thread Simone Tilmes
Hi Michael, our model does include PSC, and includes the important chemical reactions that are related to those. We are running with most recent updated schemes that from PSCs, liquid and ice clouds. You are welcome to dive into our recent model description papers, if you like. Our model compares

Re: [geo] Re: First simulations of designing stratospheric sulfate aerosol geoengineering to meet multiple simultaneous climate objectives - Kravitz - 2017 - Journal of Geophysical Research: Atmospher

2017-11-08 Thread Michael Hayes
Ben, if you ever do get around to running the model with PSCs, I would be interested in viewing the results and learning more about the details of your model. As I have had my concerns over this sulfur/PSC issue for years, I've read up on a number of models specifically crafted for PSCs and most