[geo] SRM = bandaid, CDR = cure

2013-02-18 Thread Rau, Greg
http://www.skepticalscience.com/print.php?n=1785 No alternative to atmospheric CO2 draw-down This article suggests that the current atmospheric CO2 level is already triggering amplifying feedbacks from the Earth system and therefore, in themselves, efforts at reduction in atmospheric CO2-emissio

Re: [geo] Brief Summary Marine Geoengineering Techniques

2013-02-18 Thread rongretlarson
Chris and list: 1. Thanks for forwarding your interesting 4-pager on marine engineering. I respond here only from the perspective of biochar. 2. On your p 2, the word "biochar" appears this way: "Depositing crop wastes on the deep seabed – Strand and Benford (2009) have proposed depositing

Re: [geo] SRM = bandaid, CDR = cure

2013-02-18 Thread Andrew Lockley
As previously pointed out on this list, monsoon disruption and ocean acidification are not widely accepted as being the certainties claimed below. A On Feb 18, 2013 6:13 PM, "Rau, Greg" wrote: > http://www.skepticalscience.com/print.php?n=1785 No alternative to > atmospheric CO2 draw-down > >

[geo] CDR: Stanford weighs in

2013-02-18 Thread Rau, Greg
http://planetsave.com/2013/02/18/stanford-scientists-aim-to-remove-co2-from-atmosphere/ Stanford Scientists Aim To Remove CO2 From Atmosphere Joshua S Hill [http://c1planetsavecom.wpengine.netdna-cdn.com/wp-content/plugins/repostus/repostus_bttn_lng_repost.png] Turn the clock back a decade and we

Re: [geo] Brief Summary Marine Geoengineering Techniques

2013-02-18 Thread rongretlarson
List (cc Ken) 1. This note is to draw attention to a nice April 2011 comparison of different CDR approaches that I had not seen before being sent to it by Chris Vivian.(see below). For about 25 minutes of Ken Caldeira comparing most of the CDR alternatives at an American Meteorological Socie

[geo] Brief Summary Marine Geoengineering Techniques - MVB points

2013-02-18 Thread John Latham
Hello Chris et al. I think this is a very interesting paper. With respect to Marine Cloud Brightening (MCB), outlined therein, I would like to add a couple of points:- If MCB is found to function as assumed in our modeling studies – which remains to be determined – it could possibly:- (1)

Re: [geo] CDR: Stanford weighs in

2013-02-18 Thread Oliver Tickell
It is frankly somewhat amazing that this review contains no mention at all of what appears to be the single lowest cost and lowest impact way of removing excess CO2 from the atmosphere, namely the accelerated weathering of magnesium silicate bearing rock by spreading the pulverised rock at la