[geo] The importance of educational outreach

2011-07-26 Thread Michael Hayes
Hi Folks, Here is a media report on study which may point to the importance of educational outreach concerning GE. Minority rules: Scientists discover tipping point for the spread of ideas http://www.physorg.com/news/2011-07-minority-scientists-ideas.html Here is the opening paragraph: When

[geo] Re: More detail per list member request

2011-07-26 Thread Ken Caldeira
Not considering everything under the sun is not a problem with our paper, it is what makes a scientifically defensible quantification possible. We note in the paper that in quantifying future co2 emissions from existing co2-emitting devices, we are quantifying only a piece of infrastructural

Re: [geo] Re: Arctic methane workshop, London, 15-16th October CONFIRMED

2011-07-26 Thread Sam Carana
Oliver Tickell wrote: Another approach would be to enhance HO hydroxyl in the atmosphere - the main destroyer of methane. I have no idea how to set about doing this. It could be helpful to reduce emissions that utilise existing hydroxyl, such as miscellaneous hydrocarbons. But the chemistry is

Re: [geo] Re: Arctic methane workshop, London, 15-16th October CONFIRMED

2011-07-26 Thread Andrew Lockley
Creating OH radical is best done by leveraging existing processes. The radical is too short-lived to be effectively distributed when produced industrially, and energy costs are also too high. The NOx recycling reaction series was chosen by L Zhou et al in their recent paper, as (in dry air) NOx

[geo] Re: More detail per list member request

2011-07-26 Thread Andrew Lockley
Ken I understand your position, and I wasn't attempting to suggest you and your co-authors were guilty of 'bad science'. However, the problem with your approach is that, in the absence of broader papers, it is not clear how policy makers could react to the risks I've outlined. The risk is that

[geo] Speaking of methane...

2011-07-26 Thread Rau, Greg
NY Times July 25, 2011 Blame for Extinction Spreads to Methane Gas By SINDYA N. BHANOO Two hundred million years ago, at the end of the Triassic period, a mass extinction, often attributed to major volcanic activity, wiped out half of all marine life on Earth. But new research published in the

[geo] The melting Arctic: Another effect

2011-07-26 Thread Rau, Greg
SCIENCE: Climate change 'remobilizes' long-buried pollutants as Arctic ice melts (07/25/2011) Lauren Morello, EE reporter Warming in the Arctic is causing the release of toxic chemicals long trapped in the region's snow, ice, ocean and soil, according to a new study. Researchers from Canada,

Re: [geo] Re: More detail per list member request

2011-07-26 Thread John Gorman
I totally agree with these timescales. Somewhere between 2060 and 2100 is the timescale for very low carbon emissions worldwide. Anything earlier is simply unrealistic. This is the central argument for geoengineering- both SRM and carbon capture from atmos. john gorman - Original

[geo] Re: More detail per list member request

2011-07-26 Thread rongretlarson
Steve (cc Geo List and more ccs - adding Dr. Wasdell) 1. Thanks for making your helpful Science paper available for all. 2. I started the latest part of this thread (because Ken kindly referenced your joint paper a few days ago) - so hope you don't mind my carrying my interest a bit further.