here’s a look at a “real life” example of CO2 capture & storage (CCS) technology put into practice …

in north america, the weyburn project in weyburn, saskatchewan, canada, was actualized in 2000 … it involves capturing CO2 gas from the dakota gasification company (dgc), a coal gasification plant in north dakota …

according to the dgc website, “each day the synfuels plant converts approximately 18,000 tons of lignite coal into an average 145 million cubic feet of synthetic natural gas” … the CO2 gas by-product of burning coal is captured and ‘recycled’ by the oil extraction industry in saskatchewan instead of being released into the atmosphere … more…

exposed bedrock in the gulf of maine, usa

well, if injecting CO2 supercritical gas into bedrock is loaded with caveats, imagine how much worse it is to inject CO2 gas into the ocean — a living ecosystem teeming with biota (albeit i am not averse to Buddhist teachings and the contemporary Gaeia hypothesis, which contend that all matter has life) …

i’m especially bothered by any anthropogenic perturbations to oceans, largely because my training and schooling as a marine biologist made me shockingly aware of the enormity and extent of issues plaguing marine ecosystems as well as the (often unappreciated) importance that oceans play in global ecosystems …

so what may happen as a result of our attempts to store excess atmospheric CO2 gas in oceans? more…

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 …

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…

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…

<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!>

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…

an abacus

human creativity knows no bounds … i think archaic and modern technology are impressive reflections of our ability to solve problems, adapt to our environment, and model new tools based on observations of nature … modifying and finding novel applications for existing technologies is equally august …

thorstein veblen (1857 – 1929), US economist & social philosopher, said “necessity is the mother of all invention” … for the past few decades, necessity has put technological solutions to climate change at the forefront of industry research, political agendas, and media attention …

however, technology is not a (let alone the) solution to climate change … more…