Once produced, methane could have been stored as a stable clathrate hydrate and released to the atmosphere either gradually, through volcanism, or in bursts, triggered by impacts.

• 甲烷一旦形成，便可以储存在稳定的晶笼水合物中，并且藉由火山作用的逐渐释放，或是撞击所引起的爆发，而进入大气中。