# Reading Ancient Climate Records

Explain how ice cores preserve ancient air bubbles, isotope ratios, and volcanic markers allowing reconstruction of temperature and CO2 going back 800,000 years; describe tree rings, ocean sediment cores, coral skeletons, and pollen records as additional climate proxies; explain how climate models are built and validated against the palaeoclimate record; describe the IPCC process of synthesising scientific evidence across thousands of studies to produce consensus assessments

Builds on: Climate Change Basics (hard, https://ai.page/c/climate-change-basics/en.md)

Concept id: reading-ancient-climate-records. Subject: science. Licence: CC BY-SA 4.0.

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