A couple of comments on John Gorman's comments on carbon capture and
storage (CCS):
1. There are extensive saline aquifers under the continental shelves
of the world that can take a substantial amount of CO2. The Sleipner
and Snohvit projects in Norway are currently using such formations -
see
Geoengineering Group Members invited to an upcoming event this week at
The British Library.
TalkScience@BL-- Geoengineering Our Climate: Fixing Earth’s Future?
A discussion with Professor Tim Lenton
14 July, 2011, 18.20 – 20.30 (The British Library, 96 Euston Rd,
London NW1 2DB)
Professor Tim
Since the reactions are exothermic and spontaneous, no need for external
energy input if you are willing to wait around for 100’s kyrs. To speed up the
process, one approach is to invest some energy in mining grinding (increase
reactive silicate surface area e.g., Schuiling et al.). Then
Using silicates as cation sources? I thought your process precipitated Ca and
Mg from seawater, thus removing rather than generating alkalinity in seawater,
but fill us in.
-G
On 7/11/11 11:58 AM, Thomas Goreau gor...@bestweb.net wrote:
Dear Greg,
Thanks! You say below:
Longer electrolysis
And correct me if I am wrong, but since your process forces CaCO3 and
alkalinity to be lost from seawater, the process is a net source rather than a
net sink of atmospheric CO2: Ca(HCO3)2(aq) -- CaCO3(s) + CO2(g) + H2O.
In contrast our process starts with seawater or brine and ends up with
Folks
Earlier comments on this thread contained lots of speculation about what people
think about SRM/geo.
We recently submitted a paper that has some of the first results from a
high-quality surveys of public perception. (Where for a survey,
high-quality=that is big numbers, good demographic
David,
Some (entirely speculative) disadvantages might be:
1) Particles raining out and causing respiratory problems in dry
deposition, especially in Inuit communities who live pretty much at
the end of the Brewer-Dobson circulation
2) Particles staying up for longer than wanted, thus reducing
Responding to a VERY old thread on wind power:
The only link to geoengineering here is that there is a possibility of
manipulating wind turbine drag for weather control, see:
At 10's TW scale extraction of wind does begin to be constrained by the
generation of kinetic energy. I led the a joint
