"The international community should be outraged that Iceland could almost single-handedly sink deep-sea protection and the food security of future generations, " said Ms Sack.

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When the ocean plates sink deep enough, portions are melted by the intense heat generated within the mantle, turning the solid rock into molten magma.

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Instead, the real culprit is the inevitable collapse of tax revenues that comes as countries sink into deep and prolonged recession.

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When you stop believing you sink into deep quicksand.

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It will be interesting to see whether Brighter.com can sink its teeth deep enough into the market to succeed.

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"The high latitude North Atlantic Ocean is a globally important ocean region, as it is a sink for atmospheric carbon dioxide and an area where deep water formation takes place, " Prof Achterberg observed.

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Wannabe cosmonauts also have the opportunity to sink underwater to the ISS replica, which is submerged snugly in a swimming pool 12m deep and 23m wide.

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