Oil Crash

Discussions about Peak Oil and Alternative Energy Sources.

Tuesday, December 20, 2005

Bubbling Ice Cores from 650000 Years Ago.

Recently the climate pseudoscientists showed us, using Tiny Air Bubbles from Ice Cores accumulated 650000 years ago, that our current atmospheric level of CO2 is 27% percent higher than 650000 years ago!

That's an absolutely ridiculous claim! Those tiny air bubbles in those ice cores measure no more than a few micron in diameter. Let's say it's 10 microns. That provides about 1x10^-15 cubic meter of volume. At regular air pressure and temperature, the number density of air molecules is P/(kT) = 2.7x10^25 per cubic meter. So you expect to find about 2.7x10^10 air molecules. At 380 ppm concentration of CO2, that's about 10 million CO2 molecules.

Are they claiming that those air bubbles are so tightly sealed, that during 650000 year there is absolute no exchange between the CO2 in the bubble, and that of the outside environment, and that there is nothing that gets dis-solved in the ice as well? Yes, solid ice DO dis-solve a small amount of all gases, especially CO2. Also, they have forgotten that the basis of determine the 650000 years ago, is based on the fact that a certain percentage of carbon in the air is freshly minted C14, which decays in time into something else. As the carbon is trapped in one way or another, the C14 decays away over time. So you lose both in the total amount of carbon, as well as in the percentage of C14 out of the total carbon. So it is not surprising at all if you determine a slightly lower level of carbon.



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