/sci/ - Science & Math

>>10732129
>This seems like the perfect excuse to cherry pick data that doesn't fit the narrative. Correlation does not equal causation. Are there no other ice cores except for Antarctica?
We see CO2 is elevated in Greenland ice when there is a localized organic matter (which we can measure). Organic matter decompose into CO2, and that CO2 diffuse out to adjacent sample depths in the firn making the whole Greenland CO2 record unreliable. We see the exact same thing in ice cores from tropical mountain glaciers (Himalayas, Andes, etc). So yeah unfortunately CO2 record can only come from Antarctic ice, which has 2 orders of magnitude lower organic loading. However as I said, there have been >10 ice cores drilled in Antarctica and they all measure more or less the same CO2 levels when their ages happen to overlap.

Furthermore, independent CO2 proxies such as delta Boron-11 in the ocean (which is a function of ocean pH, which is a function of atmospheric CO2) seems to agree with Antarctic CO2 reconstruction. http://www.p-co2.org/boron.. This further validates the Antarctic CO2 measurements from ice cores.