Friday, January 02, 2009

CO2 Below The Surface

While you have probably seen graphs of the atmospheric carbon dioxide concentration slowly increasing over time, the graph above shows the yearly growth RATE, as well as the estimated yearly rate of emissions by humanity. It shows a couple of interesting things. First, the growth rate of atmospheric CO2 is, on average, only about 50% of what mankind emits. This means that Mother Nature takes out about 50% of the ‘excess’ CO2 that we pump into the atmosphere every year. And it seem like it doesn’t matter how much MORE we put in each year…nature still takes out an average of 50% of that amount.

Secondly, it shows that there are huge year-to-year fluctuations in the amount of extra CO2 that shows up at Mauna Loa. Most of these fluctuations are due to El Nino and La Nina events.