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Understanding the Interplay Between Climate Change and the Carbon Cycle

This document explores the complex relationships within Earth's carbon cycle, highlighting key processes such as photosynthesis, respiration, and decomposition. It examines the major carbon reservoirs—atmosphere, ocean, and biosphere—and their exchanges, which significantly influence atmospheric CO2 levels and climate patterns. The feedback mechanisms between climate and the carbon cycle are crucial for predicting future climate scenarios. This analysis draws on research from esteemed sources like NOAA and recent studies on ocean CO2 and acidification, stressing the urgency of understanding these dynamics in the context of climate change.

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Understanding the Interplay Between Climate Change and the Carbon Cycle

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  1. Climate and the Carbon Cycle Gretchen Keppel-Aleks California Institute of Technology 16 October 2010

  2. The Global Carbon Cycle Fossil Fuel Source ~8 Atmosphere Ocean exchange ~70 Land exchange ~120 Ocean Uptake ~2 Land Uptake ~3 Ocean Biosphere (LeQuere 2009) fluxes [PgC yr-1] Carbon is transported through natural reservoirs: the atmosphere, the biosphere, and the ocean

  3. Earth’s Carbon Cycle Respiration Photosynthesis Decomposition NOAA ESRL Fluxes between the biosphere and the atmosphere set the seasonal patterns in atmospheric CO2

  4. Earth’s Carbon Cycle Atmospheric CO2 Respiration Photosynthesis

  5. Earth’s Carbon Cycle Temperature ? Atmospheric CO2 Respiration Photosynthesis Feedbacks between climate and the carbon cycle affect natural fluxes of CO2

  6. Terrestrial Carbon Cycle Humidity, Precipitation,Regional Climate ? Temperature ? ? Atmospheric CO2 Respiration Photosynthesis Feedbacks between climate and the carbon cycle affect natural fluxes of CO2

  7. Ocean CO2 and Acidification (Hoegh-Guldberg et al., 2007 , Doney et al., 2009) Changes in the concentration of atmospheric CO2 impact the ocean

  8. Ocean CO2 and Acidification (Hoegh-Guldberg et al., 2007 , Doney et al., 2009) Changes in the concentration of atmospheric CO2 impact the ocean

  9. Climate - Carbon Cycle Links Carbon is present in natural reservoirs (atmosphere, ocean, biosphere) The growth of carbon in the atmospheric reservoir is the major contributor to climate change Climate change will affect the cycling of carbon through natural reservoirs Understanding carbon cycle feedbacks is crucial to predicting future climate

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