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Human emissions of CO2 causing rapid acidification of oceans

London, Nov 15 : Scientists have revealed that the world's oceans are becoming acidic at an "unprecedented rate", while claiming that human emissions of CO2 are clearly to blame.


Researchers said that acidification could increase by 170 percent by 2100 and it is difficult for around 30 percent of ocean species to survive in these conditions, the BBC reported.

A review of the state of the science has now been published after over 500 of the world's leading experts on ocean acidification gathered in California in 2012.

The research states that increasing acidification is caused by human activities which are adding 24 million tonnes of CO2 to oceans every day.

The scientist, who found that the waters have become 26 percent more acidic since the start of the industrial revolution, are worried about its potential impact on many ocean species including corals.

Studies carried out at deep sea vents where the waters are naturally acidic, indicating that around 30 percent of the ocean's biodiversity may be lost by the end of this century.

The researchers found that the effect of acidity is most profound in the Arctic and Antarctic oceans.

The researchers said that by 2020, ten percent of the Arctic will be inhospitable to species that build their shells from calcium carbonate and by 2100 the entire Arctic will be a hostile environment.

The study will be presented at global climate talks in Poland next week.

--ANI (Posted on 15-11-2013)

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