O3 depletion reduces ocean C uptake

Via ScienceDaily.com:

Ozone Depletion Reduces Ocean Carbon Uptake

New research published in GRL finds that

.... ozone depletion, combined with increased atmospheric greenhouse gas concentration, drives stronger winds above the Southern Ocean. These stronger winds bring more carbon-rich deep water to the surface, which reduces the ocean's ability to absorb more carbon dioxide from the atmosphere.

Read the entire story at Science Daily

Read the paper at GRL: Stratospheric ozone depletion reduces ocean carbon uptake and enhances ocean acidification [Subscription Required]

Observational and atmospheric inversion studies find that the strength of the Southern Ocean carbon dioxide (CO2) sink is not increasing, despite rising atmospheric CO2. However, this is yet to be captured by contemporary coupled-climate-carbon-models used to predict future climate. We show that by accounting for stratospheric ozone depletion in a coupled-climate-carbon-model, the ventilation of carbon rich deep water is enhanced through stronger winds, increasing surface water CO2 at a rate in good agreement with observed trends.

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