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Our analysis suggests three main conclusions. First, substituting aerosol geoengineering
for CO2 abatement can be an economically ineffective strategy. One key to this finding is
that a failure to sustain the aerosol forcing can lead to sizeable and abrupt climatic
changes. The monetary damages due to such a discontinuous aerosol geoengineering can
dominate the cost-benefit analysis because the monetary damages of climate change are
expected to increase with the rate of change. Second, the relative contribution of aerosol
geoengineering to an economically optimal portfolio hinges critically on so far deeply
uncertain estimates of the damages due to aerosol forcing. Even if we assume that
aerosol forcing could be deployed continuously, the aerosol geoengineering does not
considerably displace CO2 abatement in the simple economic optimal growth model until
the damages due to the aerosol forcing are rather low. Third, substituting aerosol
geoengineering for greenhouse gas emission abatement can fail an ethical test regarding
intergenerational justice.
The World of Geoengineering
With Bill Gates’ cloud-whitening experiment recently in the news, alarm bells are sounding around the world. Gates provided a U.S.-based research body, Silver Lining, with $300,000 to develop machines which would convert seawater into microscopic particles that could be sprayed in clouds to increase the whiteness, or albedo. The clouds would reflect more sunlight back into space, thereby, theoretically cooling the planet.
What is so shocking about this research – the largest known attempt at engineering the climate – is that these scientists and engineers need no permission to go from research to execution. There are currently no laws prohibiting atmospheric geoengineering projects. A report by the UKs national academy of science, The Royal Society, warned that the side effects of cloud-whitening were unknown. And, in March, Britain’s Science and Technology Committee said that countries should not be allowed to engage in geoengineering without consulting the UN.
Carbon dioxide and other greenhouse gases from human activities warm our climate. Two effects of this warming are the increase of clouds and the rise of water vapor in the atmosphere. Both of these in turn influence the impacts of the man-made gases on global warming. Clouds can reflect the sun rays away from the surface, cooling the climate, but they also act as “blankets,” trapping sun’s radiative heat. These various interactions are complex and not fully understood. However, the processes are crucial in determining the eventual overall effect of manmade greenhouse gases on the earth’s climate. The detailed measurements from the Crystal-Face mission will assist in improving our climate models. Six aircraft will be equipped with state-of-the-art instruments to measure characteristics of clouds and how clouds alter the atmosphere’s temperature. These measurements will be compared with ground based radars, satellites, and the results of advanced atmospheric models, in order to improve our ability to forecast future climate change. This large multi-agency experiment will unite seven NASA centers, NOAA, National Science Foundation, Department of Energy, Office of Naval Research, U.S. Weather Research Program, Universities and other government weather researchers in this well coordinated study of our environment.
“In recent years there has been a decline in the support for weather modification research, and a tendency to move directly into operational projects.” ~World Meteorological Organization, 2007
First, substituting aerosol geoengineering for CO2 abatement can be an economically ineffective strategy
Did you actually read what you posted?
It just says aerosol injecting won't replace CO2 abatement.
First, substituting aerosol geoengineering for CO2 abatement can be an economically ineffective strategy
Originally posted by MathiasAndrew
reply to post by Essan
I guess it depends which side of the MSM you get your news from. The article you provided is based on an old 2005 IPCC report from climate model studies. It's not exactly up to date and accurate is it.
www.dcbureau.org...
The World of Geoengineering
With Bill Gates’ cloud-whitening experiment recently in the news, alarm bells are sounding around the world. Gates provided a U.S.-based research body, Silver Lining, with $300,000 to develop machines which would convert seawater into microscopic particles that could be sprayed in clouds to increase the whiteness, or albedo. The clouds would reflect more sunlight back into space, thereby, theoretically cooling the planet.
What is so shocking about this research – the largest known attempt at engineering the climate – is that these scientists and engineers need no permission to go from research to execution. There are currently no laws prohibiting atmospheric geoengineering projects. ...snipped the rest...
Atmospheric Geoengineering: Weather Manipulation, Contrails and Chemtrails (Revised
coto2.wordpress.com...
“In recent years there has been a decline in the support for weather modification research, and a tendency to move directly into operational projects.” ~World Meteorological Organization, 2007
Going under a variety of names – atmospheric geoengineering, weather modification, solar radiation management, chemical buffering, cloud seeding, weather force multiplication – toxic aerial spraying is popularly known as chemtrails.
Originally posted by MathiasAndrew
reply to post by DJW001
Did you actually read what you posted?
Originally posted by MathiasAndrew
reply to post by Essan
I guess it depends which side of the MSM you get your news from. The article you provided is based on an old 2005 IPCC report from climate model studies. It's not exactly up to date and accurate is it.
Originally posted by DJW001
reply to post by MathiasAndrew
Do you ever actually read the citations and links you post here?
Our analysis suggests three main conclusions. First, substituting aerosol geoengineering
for CO2 abatement can be an economically ineffective strategy. One key to this finding is
that a failure to sustain the aerosol forcing can lead to sizeable and abrupt climatic
changes. The monetary damages due to such a discontinuous aerosol geoengineering can
dominate the cost-benefit analysis because the monetary damages of climate change are
expected to increase with the rate of change. Second, the relative contribution of aerosol
geoengineering to an economically optimal portfolio hinges critically on so far deeply
uncertain estimates of the damages due to aerosol forcing. Even if we assume that
aerosol forcing could be deployed continuously, the aerosol geoengineering does not
considerably displace CO2 abatement in the simple economic optimal growth model until
the damages due to the aerosol forcing are rather low. Third, substituting aerosol
geoengineering for greenhouse gas emission abatement can fail an ethical test regarding
intergenerational justice.
Your own source.
Also, why are you bringing chaff into a thread about geo-engineering? Chaff is an electronic counter-measure used to confuse radar. What does that have to do with geo-engineering?
Originally posted by backinblack
reply to post by DJW001
They were in FACT referring to the damage such spraying would cause the planet..
[atsimg]http://files.abovetopsecret.com/images/member/acfde4d9b6c8.jpg[/atsimg]
An agricultural aircraft flies over Prachuab Khirikhan in a bid to seed clouds, about 300 km (186 miles) south of Bangkok, April 4, 2007.
REUTERS: U.N. urged to freeze climate
geo-engineering projects (aka Chemtrails)
Credit: Reuters/Sukree Sukplang
By Chisa Fujioka
NAGOYA, Japan | Thu Oct 21, 2010 3:55am EDT
NAGOYA, Japan (Reuters) - The United Nations should impose a moratorium on "geo-engineering" projects such as artificial volcanoes and vast cloud-seeding schemes to fight climate change, green groups say, fearing they could harm nature and mankind.
The risks were too great because the impacts of manipulating nature on a vast scale were not fully known, the groups said at a major U.N. meeting in Japan aimed at combating increasing losses of plant and animal species.
"It's absolutely inappropriate for a handful of governments in industrialized countries to make a decision to try geo-engineering without the approval of all the world's support," Pat Mooney, from Canada-headquartered advocacy organization ETC Group, told Reuters on the sidelines of the October 18-29 meeting.
A 20-point "strategic plan" to safeguard biodiversity includes the following goals for 2020:
- At least 17 percent of terrestrial and inland water, and 10 percent of coastal and marine areas are conserved
GEO-ENGINEERING
Delegates agreed to expand a 2008 moratorium on ocean fertilization, in which large areas are sprinkled with iron or other nutrients to artificially spur growth of phytoplankton, which soak up carbon dioxide.
Other geo-engineering projects, such as those that try to control climate change by cutting the amount of sunlight hitting the earth, will also not take place until science can justify such activities and risks for the environment are considered.
Small scale scientific research studies conducted in controlled settings will be excluded. A footnote also said the term geo-engineering would exclude the capture and storage underground of carbon emissions from power stations and refineries.
ABSTRACT
We will provide measurements of aerosol number density, volatility, size distribution and optical properties aboard the NASA DC-8 during INTEX. These measurements will be conducted in close collaboration with the University of Hawaii (Antony Clarke, PI) and will provide detailed information on ambient in-situ aerosol microphysical properties in conjunction with on-board real-time assessments of the underlying physio-chemical characteristics.
Here's one paper which shows they at least have the aircraft for aerosol recording because they are doing test
That means the debunkers assertion that there are no planes capable of recording aerosols in the air is wrong.
NASA has them and is testing.
Makes you wonder WHY they are testing for aerosols....
.. just testing to monitor levels... things that make you go... hmmm.
Originally posted by pianopraze
reply to post by MathiasAndrew
W
Here's one paper which shows they at least have the aircraft for aerosol recording because they are doing test That means the debunkers assertion that there are no planes capable of recording aerosols in the air is wrong.
NASA has them and is testing. Makes you wonder WHY they are testing for aerosols.
Abstract
We propose to deploy an intensive cloud and aerosol observing system to the ARM Climate Research Facility’s (ACRF) North Slope of Alaska (NSA) locale for three weeks in April 2008. This period has been chosen because it is during the International Polar Year when many ancillary observing systems will be collecting data that will be synergistic for interpreting the Indirect and Semi-Direct Aerosol Campaign (ISDAC) data. It also provides an important contrast with the October 2004 Mixed-Phase Arctic Cloud Experiment (M-PACE). We will require 30 to 45 hours of flight time for an aircraft capable of measuring temperature, humidity, total particle number, aerosol size distribution, aerosol hygroscopicity, cloud condensation nuclei concentration, ice nuclei concentration, optical scattering and absorption, updraft velocity, cloud liquid water and ice contents, cloud droplet and crystal size distributions, cloud particle shape, and cloud extinction. In addition to these aircraft measurements, we propose surface deployment of a spectroradiometer for retrieving cloud optical depth and effective radius.
Aerosol Influence on Cloud Microphysics Examined by Satellite Measurements and Chemical Transport Modeling
ABSTRACT
Anthropogenic aerosols are hypothesized to decrease cloud drop radius and increase cloud droplet number concentration enhancing cloud optical depth and albedo. Here results have been used from a chemical transport model driven by the output of a numerical weather prediction model to identify an incursion of sulfate-laden air from the European continent over the mid–North Atlantic under the influence of a cutoff low pressure system during 2–8 April 1987. Advanced Very High Resolution Radiometer (AVHRR) measurements of visible and near-infrared radiance are used to infer microphysical properties of low-altitude (T 260–275 K) maritime clouds over the course of the event. Examination of the cloud optical depth, drop radius, and drop number concentration on the high- and low-sulfate days has allowed identification of the increase in cloud droplet number concentration and decrease in cloud drop radius associated with the sulfate incursion. These observations are consistent with the Twomey mechanism of indirect radiative forcing of climate by aerosols
Project Overview: Cumulus Humilis Aerosol Processing Study (CHAPS) Proposed Summer 2007 ASP Field Campaign
Abstract
This white paper presents the scientific motivation and preliminary logistical plans for a proposed ASP field campaign to be carried out in the summer of 2007. The primary objective of this campaign is to use the DOE Gulfstream-1 aircraft to make measurements characterizing the chemical, physical and optical properties of aerosols below, within and above large fields of fair weather cumulus and to use the NASA Langley Research Center’s High Spectral Resolution Lidar (HSRL) to make independent measurements of aerosol backscatter and extinction profiles in the vicinity of these fields. Separate from the science questions to be addressed by these observations will be information to add in the development of a parameterized cumulus scheme capable of including multiple cloud fields within a regional or global scale model. We will also be able to compare and contrast the cloud and aerosol properties within and outside the Oklahoma City plume to study aerosol processes within individual clouds. Preliminary discussions with the Cloud and Land Surface Interaction Campaign (CLASIC) science team have identified overlap between the science questions posed for the CLASIC Intensive Operation Period (IOP) and the proposed ASP campaign, suggesting collaboration would benefit both teams.