Monday, October 6, 2014

Is the Ocean Warming and How Much?

Two articles at the Daily Mail concerning ocean warming and global warming. The first article cites researchers from  Lawrence Livermore National Laboratory who claim that the oceans have been warming up to 152% faster than believed. From the article:
Ocean warming is a key marker for global warming as they can store more than 90 per cent of man-made excess heat. Warmer oceans are also connected to rising sea levels. 
Lawrence Livermore National Laboratory scientists used satellite observations to uncover long-term ocean warming in the upper 2,300ft (700 metres) of Southern Hemisphere oceans, and found old data was inaccurate.
The second article cites researchers from NASA that claim that the oceans have not been heating as much as thought, and that the deep ocean has not heated at all since 2005. From the article:
Scientists at NASA's Jet Propulsion Laboratory in Pasadena, California, analyzed satellite and direct ocean temperature data from 2005 to 2013 and found the ocean abyss below 1.24 miles (1,995 meters) has not warmed measurably.  
Study coauthor Josh Willis of JPL said these findings do not throw suspicion on climate change itself. 
'The sea level is still rising,' Willis noted. 'We're just trying to understand the nitty-gritty details.' 
In the 21st century, greenhouse gases have continued to accumulate in the atmosphere, just as they did in the 20th century, but global average surface air temperatures have stopped rising in tandem with the gases.  
The temperature of the top half of the world's ocean -- above the 1.24-mile mark -- is still climbing, but not fast enough to account for the stalled air temperatures.
Sounds like the science is a little unsettled.

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