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Wednesday, 24 February 2016

Global sea levels rising faster due to global warming

Sea levels are rising several times faster than in the past 2,800 years and are accelerating because of man-made global warming, according to new studies.
An international team of scientists dug into two dozen locations across the globe to chart gently rising and falling seas over centuries and millennia. Until the 1880s and the world's industrialisation, the fastest rise in sea levels was about 3cm to 4cm a century, plus or minus a bit.
During that time the global sea level really did not get much higher or lower than 7.62cm above or below the 2,000-year average. But in the 20th century the world's seas rose 14cm.
Since 1993 the rate has soared to 30cm and two different studies, published on Monday in the journal Proceedings of the National Academy of Sciences, said that by 2100 the world's oceans would rise between 28 and 131cm, depending on how much heat-trapping gas Earth's industries and vehicles expel.

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