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Japanese researchers working for the government were the first to tap natural gas from seabed methane hydrates this march .

今年三月份，为日本政府工作的研究人选率先从海底的甲烷水合物中提取天然气。

The mining of methane ice could also wreak havoc on marine ecosystems . "

开采甲烷冰也可能对海洋生态系统造成严重破坏。”

Will all the methane in the permafrost be released ?

永冻层的甲烷气体是否都会释放出来？

That tillage would release carbon dioxide and methane .

这样的耕作方式当然会减少二氧化碳和沼气的排放。

Or the documented cases of methane migration ?

或者说是记录在册的甲烷运移的案例呢？