Inconvenient: iceberg calving helps ‘carbon sequestration’ and is ‘helping to slow global warming’

Watts Up With That?

From the UNIVERSITY OF SHEFFIELD and the department of “unknown negative feedbacks” comes this interesting study. While there have been numerous claims that warmer Polar temperatures (due to posited global warming effects) will cause more iceberg calving, I’m sure it will come as quite a shock to those same folks when they discover that there’s a negative feedback for CO2 in the process. Via Eurkealert.

Northern edge of Iceberg B-15A in the Ross Sea, Antarctica, 29 January 2001. Credit: NSF/Josh Landis Northern edge of Iceberg B-15A in the Ross Sea, Antarctica, 29 January 2001. Credit: NSF/Josh Landis

Giant icebergs play key role in removing CO2 from the atmosphere

Key points:

  • Giant icebergs leave trail of carbon sequestration in their wake — a month after they have passed
  • Geographers analysed 175 satellite images of ocean colour which is an indicator of phytoplankton productivity at the ocean’s surface Giant icebergs are responsible for storing up to 20 per cent of carbon in the Southern Ocean, a new…

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