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Tuesday, July 21st, 2009 | Author:  | 8,199 views - starting Aug 9/09

in my previous post, i listed 3 general CO2 gas storage geotechnology strategies … i’ll discuss the pros & cons of each individually in the upcoming posts …

protestors dressed in CO2 molecule costumes to demonstrate in essen (1 june 2007) as part of the anti-CO2 pollution initiative, 'byebye CO2' ... photo from reuters

protesters dressed in CO2 molecule costumes to demonstrate in essen (1 june 2007) as part of the anti-CO2 pollution initiative, 'byebye CO2' ... photo from reuters

1.  CO2 stored in gaseous form and pumped or injected deep below the ground, into various geological formations such as saline aquifers, exhausted gas fields, coal beds, etc.

PROS:

* currently, this option is considered the safest … the injected CO2 gas is expected to react with the local bedrock and naturally form inert mineral carbonates via a process known as mineral carbonation … this is a natural geological process which, under normal conditions, occurs over a span of thousands of years … hence, the injected CO2 gas will theoretically exert no detriment to the local and regional geology while becoming permanently stored below the Earth’s surface … more…

Category: climate change, Ecosystems, Energy  | Tags: , , , , ,  | 6 Comments

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Friday, July 17th, 2009 | Author:  | 9,105 views - starting Aug 9/09
Quercus virginiana

Quercus virginiana

humans are still trying to develop technologies that imitate natural processes … by far the most effective, efficient, time-tested, and safest carbon capture and storage technology is found in photosynthesizing plants, soil microorganisms, and marine and freshwater ecosystems … however, fancy human technology has joined the race …

what are the pros & cons of artificial CO2 gas capture & storage? more…

Wednesday, July 15th, 2009 | Author:  | 13,073 views - starting Aug 9/09

<i wish i could figure out how to subscript the “2″ & “(g)” in CO2(g) in this wordpress application … my apologies to the chemists who may be perturbed by the incorrect notations throughout my posts!>

CO2 emissions

first of all, what exactly is CO2 gas capture and storage? … well, that’s a good question! … and how is the CO2 captured in the first place?

CO2 gas is a by-product (as well as a reactant and resource) of innumerable chemical processes — biological, geological, and cosmic … however, the rate at which CO2 gas increases in Earth’s atmosphere, as well as the cyclic patterns of fluctuating CO2 gas concentrations relative to other atmospheric gases, have both changed dramatically since the onset of the industrial revolution …

increasing atmospheric CO2 levels affect (but don’t determine) climate and weather patterns … hence, CO2 is considered a “greenhouse gas”, which contributes to the current global warming trends we are witnessing …
more…