Mason, et al: Please find attached a graph of the growth rates in CO2 since 1959. I have plotted the trend in growth rates as linear functions for the first half and second half of this period. Note, I pulled the two outlier years (1992 & 1998) one of which was the low outlier and the other the high outlier. One could leave them in as they balence each other over the second half of the half-century period. The plots for each period extend over the entire period only to show how different they are from each other.
I also note that the second half of the 48 year period is extremely noisy and the F statistic of that linear estimate is below statistical significance, while the first half is much more orderly. My only point in all this is that we don't have a good handle on the carbon cycle as a function of carbon emissions. Taking into account the "warming" earth (air and ocean) and the increasing levels of CO2 emissions in the last quarter century, the rate of growth of atmospheric CO2 should be increasing at a rate faster than the previous quarter century period, and clearly it is not. That is my only point. To reitterate, I don't have much confidence in the modeling of the carbon cycle because of this data. David. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en -~----------~----~----~----~------~----~------~--~---
Mona Loa CO2 Growth Rate - Schnare.doc
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