They fear the warming caused by increased methane emissions will itselfrelease yet more methane and lock the region into a destructive cycle thatforces temperatures to rise faster than predicted.

他们担心甲烷排放量的增加引起的气候变暖将导致更多的甲烷释放，把该地区锁定成破坏性循环，迫使温度上升速度比预期更快。

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As to importance, when originally identified as distinct, the archaea, too, were regarded as marginal-yet their methane-generating properties are now a factor in climate-change calculations.

至于其重要性，古菌群在最开始被认定为自成一类时，也被视为无关紧要——但是它们释放甲烷的特性现在已被纳入气候变化的考察因素。

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Recently this has included methane odors in San Diego, a huge fissure in Arizona, and yet another Mississippi bridge needing repair.

最近这包括圣地亚哥的甲烷气味，亚利桑那的巨大裂缝，还有密西西比河上另一座桥需要修理。

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As to importance, when originally identified as distinct, the archaea, too, were regarded as marginal yet their methane-generating properties are now a factor in climate-change calculations.

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The company said the blast was caused by a buildup of methane in the building's cellar, but doesn't yet know what caused the gas to accumulate.

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