-- Forwarded message --
From: "Choffat Eva Brigitte"
Date: Nov 30, 2012 8:26 AM
Subject: DACA-13: REMINDER - Call for Abstracts, Deadline for grant
applications
To: "Choffat Eva Brigitte"
REMINDER - DEADLINE
Call for Abstracts with Grant Application
Davos Atmosphere and Cryosph
I don¹t recall where but I think such approaches have been analyzed
previously. As I recall, the problem is displacement by the solar wind and
the particles will get pretty quickly pushed out of intended orbit, slowed,
and burned up in the atmosphere‹indeed, with so many particles, might that
not h
Good technical discussion, the key negative point omitted is that it would not
be a local solution and would be good for somecountries or regions; not good
for others. Such a solution would be acceptable only if global warming gets
really bad and is unacceptable to all.
- Original Message
Nothing new under the sun?
There was a 1960 Soviet proposal for a Saturn-like ring around Earth to
melt the polar ice cap. See Fixing the Sky, pp. 199-200:
In Man Versus Climate (1960), Soviet authors Nikolai Petrovich Rusin and
Liya Abramovna Flit surveyed a large number of schemes for climatic
Polar melting is accelerating, and so is sea level rise -- report
Lauren Morello, E&E reporter
Published: Friday, November 30, 2012
Ice sheets in Greenland and Antarctica are shrinking three times faster than
they were in the 1990s, and their contribution to global sea level rise is
growing, acco
Andrew
A few comments in response to this and the subsequent comment by
1. This vector representation is useful way to think about trade-offs when the
climate response to CO2 and SRM is reasonably linear. This stuff is published
as: Juan Moreno-Cruz, Katharine Ricke and David W. Keith. (2011).
David
Thanks for your response.
My comments regarding soil moisture related to precipitation and
evaporation over land specifically. Land isn't a closed system, as river
flows provide a balancing term.
Let us consider geoengineering to get us back to a ore industrial
temperature or precipitation
Andrew - I agree that if one were to only pick two variables, then
temperature and soil moisture (or P-E as a reasonable proxy for it) might
even be better ones to pick than temperature and precipitation. However,
given that geoengineering will change both precip and evaporation, it isn't
obvious
