Paleoclimatology
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High Quality Content by WIKIPEDIA articles! Paleoclimatology (also Palaeoclimatology) is the study of climate change taken on the scale of the entire history of Earth. It uses records from ice sheets, tree rings, sediment, and rocks to determine the past state of the climate system on Earth. All records decrease in utility back in time. The oldest ice core taken was from the Antarctic and dates to 800,000 years old. An international effort is currently being made in the same location to core to 1.2 million years ago. The deep marine record, our source of most isotopic data, only exists on ocea...
High Quality Content by WIKIPEDIA articles! Paleoclimatology (also Palaeoclimatology) is the study of climate change taken on the scale of the entire history of Earth. It uses records from ice sheets, tree rings, sediment, and rocks to determine the past state of the climate system on Earth. All records decrease in utility back in time. The oldest ice core taken was from the Antarctic and dates to 800,000 years old. An international effort is currently being made in the same location to core to 1.2 million years ago. The deep marine record, our source of most isotopic data, only exists on oceanic plates, which are eventually subducted - the oldest remaining material is 200 million years old. Older sediments are also more prone to corruption by diagenesis. Consequently, our resolution and confidence in data decrease over time.
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