Friday, December 2, 2011

Trouble - Ocean Acidification, Warming and Deoxygenation

As huge amounts of financial investments are put into mitigating the effects of climate change on forests and renewable energy projects, marine scientists feel the oceans are being neglected by governments and policymakers.

As much as the land is affected by the climate change conditions, oceans are affected by acidification, warming and deoygenation which are all detrimental to the marine ecosystem. Climate change influences oxygen levels in the oceans with a particularly harsh effect on the warmer waters as higher temperatures reduce oxygen solubility. Ocean acidification and nutrient run-off from streams and rivers can contribute to deoxygenation. These effects combine resulting in interconnected triple trouble for the oceans.

Dr Anthony Ribbink, CEO of Sustainable Ocean Trust in South Africa, and programme manager for the South African Institute for Aquatic Biodiversity, provides a human analogy where the world has two lungs - forests and oceans.

Ribbink says at the UNFCCC COP 16 in Cancun, billions of dollars were pledged to restore, develop and maintain forests. "This is welcomed as forests play such a critical role in maintaining the atmosphere and accommodating a stunning diversity of species. The focus of COP 16, therefore, was on one lung of the globe (the forests)."

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