Ice core dating problems

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Changes in sea ice concentrations can also be reconstructed from polar ice cores[14]. How recent can we read ice core data? The snow turns to ice by the pressure of subsequent annual layers squeezing out the air between the grains of snow. Careful studies have also been performed to explore how the air bubbles in ice transform to clathrates deep in the ice sheet bubbles are forced in to the crystal lattice due to extreme pressureand how this affects gas measurements from the bubbles. Ime arguing with my brother about manmade climate change.

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For the first, some of the best ice core CO2 data that overlaps with modern measurements comes from a place called Law Dome in East Antarctica.

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Ice Cores and Climate Change

Deep ice cores: If current conditions were due entirely to Milankovitch cycles, global climate should be cooling slowly for another few thousand years, just as it has for the past or so. There are two important fractionation processes: Since there is much more light oxygen than heavy oxygen, cold water evaporates very little heavy oxygen. These autocorrelation tests of temperature data show the strong correlation with various periodic orbital attributes. I indeed succeeded with this article. Antarctica preserves much cleaner, clearer gas records because it is very isolated from any of the few Southern Hemisphere land masses and thus isolated from dust sources.

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