The Carbon Cycle ·
Earth's Recycling Engine
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.com · atmosphere · ocean · biosphere · rock
Fast flux
≈210 Gt C/yr
Atmosphere
≈420 ppm CO₂
flux
—
CO₂ (atmosphere)
Photosynthesis · biosphere
Ocean · HCO₃⁻ buffer
Rock · CaCO₃ burial
Volcanism · outgassing
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.com · The Carbon Cycle