AN amusing news item that briefly bubbled to the top of the information stew last week was an announcement by scientists at the University of the Philippines that their research had 'found evidence of the presence of gas hydrates in the Manila Trench.
Several countries have tested extraction methods, with the most recent seeming to be Japan in 2013 and China in 2017. Those experiments, while apparently technically successful on the scale of one or two test wells, have not expanded.The main reason for that is extracting gas hydrates from the seafloor is extraordinarily risky, which, of course, makes it extraordinarily expensive.
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