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Originally posted by MathiasAndrew
U.S. Climate Change Science Program
Synthesis and Assessment Product 2.3
January 2009
OK first question for you is ....What does the word synthesis mean as it is being used here?
The U.S. Climate Change Science Program (CCSP) series of 21 "Synthesis and Assessment Products" (SAPs) integrate research results focused on important science issues and aimed to support informed discussion and decision making regarding climate variability and change by policy makers, resource managers, stakeholders, the media, and the general public.
Need help ?
Here en.wikipedia.org...
The objectives of this report are (1) to promote a consensus about the knowledge base for climate change decision support, and (2) to provide a synthesis and integration of the current knowledge of the climate-relevant impacts of anthropogenic aerosols for policy makers, policy analysts, and general public, both within and outside the U.S government and worldwide.
This report critically reviews current knowledge about global distributions and properties of atmospheric aerosols, as they relate to aerosol impacts on climate. It assesses possible next steps aimed at substantially
reducing uncertainties in aerosol radiative forcing estimates. Current measurement techniques and modeling approaches are summarized, providing context.
Atmospheric aerosols are suspensions of solid and/or liquid particles in air. Aerosols are ubiquitous
in air and are often observable as dust, smoke, and haze. Both natural and human processes contribute to aerosol concentrations. On a global basis, aerosol mass derives predominantly from natural sources, mainly
sea salt and dust. However, anthropogenic (manmade) aerosols, arising primarily from a variety of combustion sources, can dominate in and downwind of highly populated and industrialized regions, and in areas of intense
agricultural burning.
The term “atmospheric aerosol” encompasses a wide range of particle types having different compositions, sizes, shapes, and optical properties. Aerosol loading, or amount in the atmosphere, is usually quantified by mass concentration or by an optical measure, aerosol optical depth (AOD). AOD is the vertical integral
through the entire height of the atmosphere of the fraction of incident light either scattered or absorbed by airborne particles. Usually numerical models and in situ observations use mass concentration as the primary measure of aerosol loading, whereas most remote sensing methods retrieve AOD.
The objectives of this report are (1) to promote a consensus about the knowledge base for climate change decision support, and (2) to provide a synthesis and integration of the current knowledge of the climate-relevant impacts of anthropogenic aerosols for policy makers, policy analysts, and general public, both within and outside the U.S government and worldwide.
Anthropogenic aerosols originate from urban and industrial emissions, domestic fire and other combustion
products, smoke from agricultural burning, and soil dust created by overgrazing, deforestation, draining of inland water bodies, some farming practices, and generally, land management activities that destabilize the surface regolith to wind erosion.
Originally posted by MathiasAndrew
reply to post by tommyjo
You all requested a scientific basis for the proof that chemtrails are a real experiment that is occurring and not just some normal condition of a normal airplane contrail?
Are you no longer interested in the scientific proof or what is it ? Am I getting too close for comfort to the truth ?