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PCMIP WORKING GROUPS

Transient response of the carbon cycle on glacial-interglacial timescales

  • Understanding the drawdown of CO2 during glacials requires an understanding of the transient behaviour of the coupled climate-carbon system. CO2 also responds to abrupt climate changes within glacial and interglacials. We are still some way off being able to simulate climate evolution and thus to simulate the transient behaviour of the carbon cycle. We also have to establish the model's ability to simulate prognostic CO2 during the glacial period. The working group will make prognostic simulations of the glacial and then use a variety of modelling tools to explore transient carbon-cycle behaviour in order to devise an effective strategy to address this problem.