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Coral Reefs Exposed To Imminent Destruction From Climate Change

Date:
July 16, 2009
Source:
Zoological Society of London (ZSL)
Summary:
Leading ocean scientists and climate change experts agreed on a new level of atmospheric carbon dioxide that would need to be achieved to ensure the survival of coral reefs.

Coral reef with Anthias fish colony.
Credit: iStockphoto/Pawel Borowka

Coral reef survival is balancing on a knife edge as the combined effects of ocean acidification and ocean warming events threaten to push reefs to the brink of extinction this century, warned a meeting of leading scientists.

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Organised by ZSL, the International Programme on the State of the Ocean (IPSO) and the Royal Society, the meeting identified the level of atmospheric CO2 predicted to result in the demise of coral reefs.

At anticipated rates of emission increase, it is expected that 450 ppm CO2 will be reached before 2050. At that point, corals may be on a path to extinction within a matter of decades.

By 2050, the remaining coral reefs could fall victim to ocean acidification. Such a catastrophe would not be confined to reefs, but could start of a domino-like sequence of the fall of other marine ecosystems.

Sir David Attenborough who co-chaired the meeting said “We must do all that is necessary to protect the key components of the life of our planet as the consequences of decisions made now will likely be forever as far as humanity is concerned”.

Scientific evidence shows that we have long passed the point at which the marine environment offers reefs a guaranteed future.

“The kitchen is on fire and it’s spreading round the house. If we act quickly and decisively we may be able to put it out before the damage becomes irreversible. That is where corals are now.” said Dr Alex Rogers of ZSL and IPSO.

The meeting was held to identify tipping points for corals and to expose the issues raised by the plight of coral reefs. A statement detailing these concerns will be submitted to the UN FCCC process currently underway.

Until now, world leaders negotiating emissions reductions have not taken the ocean into serious account, but with so much at risk, the oceans can no longer be ignored.

Now, there is every reason to believe that the oceans may in fact be the most vulnerable sector of our planet to climate change – with dire consequences for us all.


Story Source:

The above story is based on materials provided by Zoological Society of London (ZSL). Note: Materials may be edited for content and length.


Cite This Page:

Zoological Society of London (ZSL). "Coral Reefs Exposed To Imminent Destruction From Climate Change." ScienceDaily. ScienceDaily, 16 July 2009. <www.sciencedaily.com/releases/2009/07/090706141006.htm>.
Zoological Society of London (ZSL). (2009, July 16). Coral Reefs Exposed To Imminent Destruction From Climate Change. ScienceDaily. Retrieved April 19, 2015 from www.sciencedaily.com/releases/2009/07/090706141006.htm
Zoological Society of London (ZSL). "Coral Reefs Exposed To Imminent Destruction From Climate Change." ScienceDaily. www.sciencedaily.com/releases/2009/07/090706141006.htm (accessed April 19, 2015).

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