World's oceans heating up at a faster pace, says study

World's oceans heating up at a faster pace, says study

The latest technology shows no such hiatus ever existed, raising new concerns about the pace of climate change and its effect on the planet's main buffer - the oceans. "Global warming is rearing its head", said Kevin Trenberth, a scientist at the US National Center for Atmospheric Research. "There is no doubt, none!" the authors wrote in a statement.

Oceans are warming primarily because of greenhouse gases released into the atmosphere by human activity. That in turn is forcing fish to flee to cooler waters.

"Ocean heating is a very important indicator of climate change, and we have robust evidence that it is warming more rapidly than we thought".

The seas are warming much faster than previously feared, warns new research.

About 93 percent of the mainly through the burning of fossil fuels in addition to heat generated will be so far absorbed by the oceans.

The four studies, published between 2014 and 2017, provide better estimates of past trends in ocean heat content by correcting for discrepancies between different types of ocean temperature measurements and by better accounting for gaps in measurements over time or location.

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The global team analyzed a number of new studies assessing ocean temperatures to conclude that ocean warming is "stronger" than predicted by previous research. The new study analyzed earlier published information and data compiled by Argo, an global system of almost 4,000 floats that measures temperature and saline levels in the upper parts of the world's oceans. The first scenario falls in line with the Paris Climate Agreement's goal of reducing greenhouse gas emissions to keep the average global temperature from rising no more than 2 degrees Celsius above preindustrial levels.

The warming has lead to an increase of rain, rising sea levels, destruction of coral reefs, declining ocean oxygen levels and declines in ice sheets, ice caps and glaciers in polar regions, according to the study.

Ocean heat - recorded by thousands of floating robots - has been setting records repeatedly over the last decade, with 2018 expected to be the hottest year yet, displacing the 2017 record, according to an analysis by the Chinese Academy of Sciences.

He told Reuters that records for ocean warming had been broken nearly yearly since 2000. The 2013 United Nations. assessment estimated slower rates of heat uptake but did not give a single comparable number.

"The Intergovernmental Panel on Climate Change's (IPCC) Fifth Assessment Report, published in 2013, showed that leading climate change models seemed to predict a much faster increase in ocean heat content over the last 30 years than was seen in observations", Hausfather said. And, unlike surface temperatures, ocean temperatures are not affected by year-to-year variations caused by climate events like El Nino or volcanic eruptions.

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