In deep water, methane gas oxidizes into carbon dioxide before it reaches the surface.

在深水中，甲烷气体到达水面之前就会氧化为二氧化碳。

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Earth is right for life because of its gas atmosphere, surface water and moderately warm temperatures.

地球最适宜于生命的存在，因为地球有大气层、地表水和适宜的温度。

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The researchers say the dead creatures probably are floating to the surface rather than sinking because they have absorbed gas bubbles as they filtered water for food.

研究者说尸体更有可能上浮到海面而不是沉入海底，因为在它们进食过程中他们吸收了天然气。

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In the study released Wednesday, researchers suggest extracting the natural gas hydrates with "depressurization" -- a method that involves changing the ice into gas and water at the surface.

CNN: Study: Tap natural gas from Alaska's frozen areas

Until recently, oil and gas produced from deep-water fields have been brought to the surface and transported to onshore processing facilities.

FORBES: World's First Subsea Smart Grid Changes Offshore Oil and Gas Game